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Both Loyal and Chaos.

We've got Robute, Mortarion, and Magnus.

They're making rumblings about Angron in the fluff with the return of Robute. If they do bring him back, I would imagine we'll see the Lion and Russ along with Angron. Both from a business and story standpoint. If Angron gets a model, it's 3 Traitor to one Loyalist. They've got to be hearing it from non Ultra players already. Story wise, three traitor primarchs could easy overwhelm one loyalist. One would assume this would have been the case if Magnus and Mortarian had just worked together instead of taking turns. The fluff would require a balancing as well so they don't have to answer why one traitor primarch doesn't keep G-Man occupied while the other two destroy the Imperium.

Further out could be a return of Sanguinius and the other dead. They're going to have to pull off a whopper of some plot armor to get them back on the field, but I can't imagine they'd keep only one faction book sans Primarch. I'd expect to see a return of Sanguinius in similar campaign fashion, possibly all of the deceased Primarchs - save Horus - coming from a rogue Cawl/Sangprimus Portum research project to regrow the primarchs and their legions - ending badly- Restoring the dead, and giving Chaos the Primaris marines with some sort of grand betrayal to keep the nature/nurture debate ambiguous. Many of the ambiguously dead probably would turn out to not be dead at this point. Dorn, Alpharius Omegon, Curze.

Over the next decade I'd say, I think we may get each primarch if we are lucky.

We should get each Daemon one. They’re kicking around. Expect Lorgar, Perturabo, Fulgrim and Angron at some point soon. Alpharius possibly, but would annoy people. No Horus, no Curze.

Loyalists are tougher; most went missing or were killed. Sanguinious returning would piss off a large chunk of the 40k player base (more than Guilliman did). The Lion, Were-Russ, Khan and Vulkan could conceivably come back, and if the retcon for Dorn works, he can come back too without a hand (bionics!) No Ferrus, no Sanguinious. Corax...I don’t remember his deal. Maybe?

Traitors, sure as said above most of them could be in the pipeline.
Loyalists get .... so


Let Corax sneak in , GW, please.

I'd say give it 20 years and we may get all the non-dead Primarchs back. Those dead guys will just stay dead, because they are dead. No Horus, Cruze, Ferrus, or Sanguinius. Dorn would be a question mark based on the "show me the body" rule.

Breton wrote:
Both Loyal and Chaos.

We've got Robute, Mortarion, and Magnus.

They're making rumblings about Angron in the fluff with the return of Robute. If they do bring him back, I would imagine we'll see the Lion and Russ along with Angron. Both from a business and story standpoint. If Angron gets a model, it's 3 Traitor to one Loyalist. They've got to be hearing it from non Ultra players already. Story wise, three traitor primarchs could easy overwhelm one loyalist. One would assume this would have been the case if Magnus and Mortarian had just worked together instead of taking turns. The fluff would require a balancing as well so they don't have to answer why one traitor primarch doesn't keep G-Man occupied while the other two destroy the Imperium.

Further out could be a return of Sanguinius and the other dead. They're going to have to pull off a whopper of some plot armor to get them back on the field, but I can't imagine they'd keep only one faction book sans Primarch. I'd expect to see a return of Sanguinius in similar campaign fashion, possibly all of the deceased Primarchs - save Horus - coming from a rogue Cawl/Sangprimus Portum research project to regrow the primarchs and their legions - ending badly- Restoring the dead, and giving Chaos the Primaris marines with some sort of grand betrayal to keep the nature/nurture debate ambiguous. Many of the ambiguously dead probably would turn out to not be dead at this point. Dorn, Alpharius Omegon, Curze.

Well from the way things are going a long long time, unless they release multiple Primarchs which I don't think they will.

 Delvarus Centurion wrote:

Breton wrote:
Both Loyal and Chaos.

We've got Robute, Mortarion, and Magnus.

They're making rumblings about Angron in the fluff with the return of Robute. If they do bring him back, I would imagine we'll see the Lion and Russ along with Angron. Both from a business and story standpoint. If Angron gets a model, it's 3 Traitor to one Loyalist. They've got to be hearing it from non Ultra players already. Story wise, three traitor primarchs could easy overwhelm one loyalist. One would assume this would have been the case if Magnus and Mortarian had just worked together instead of taking turns. The fluff would require a balancing as well so they don't have to answer why one traitor primarch doesn't keep G-Man occupied while the other two destroy the Imperium.

Further out could be a return of Sanguinius and the other dead. They're going to have to pull off a whopper of some plot armor to get them back on the field, but I can't imagine they'd keep only one faction book sans Primarch. I'd expect to see a return of Sanguinius in similar campaign fashion, possibly all of the deceased Primarchs - save Horus - coming from a rogue Cawl/Sangprimus Portum research project to regrow the primarchs and their legions - ending badly- Restoring the dead, and giving Chaos the Primaris marines with some sort of grand betrayal to keep the nature/nurture debate ambiguous. Many of the ambiguously dead probably would turn out to not be dead at this point. Dorn, Alpharius Omegon, Curze.

Well from the way things are going a long long time, unless they release multiple Primarchs which I don't think they will.

I actually do expect them to release multiple primarchs. I expect one of the next couple story campaigns to be the one to bring back multiple primarchs, and give Primaris to Chaos. The point of Primaris Marines isn't story advancing fluff, its game balancing (and model sales- which is why they went with new Marines instead of new stat lines). One book will give us Angron and at least one loyalist Primarch - the Lion or Russ or both. The other book will be all about giving Primaris to Chaos and will likely include at least one dead Primarch, likely Sanguinius Resurrected- I wouldn't be surprised to see it also Include Alpharius Omegon returning somewhere somehow (either Resurrected or more likely Faked Death revealed) behind the plot to get Primaris into Chaos and resurrecting Sanguinius to continue the Is He or Isn't He mystery surrounding which side he's really on.

They can't bring Horus back - at least on the side of Chaos where he was on par with the Emperor ( I could see him being brought back as a malleable <Chapter> Keyword primarch for build your own justified as he was "The Warmaster" and skilled at everything - well that and he has no Chapter/Legoin left - though they have the destroyed soul thing to retcon and its still way unlikely and far down the priority list) But the rest almost have to be on a schedule of some kind - the other "Codex" chapter primarchs are probably behind the "non-Codex compliant" simply so every book has at least one Primarch to play with.

Every Traitor Primarch but Horus is potentially alive - there are two grassy knoll conspiracies about Kurze and Alpharius Omegon.

There are two dead Loyalists (Sanguinius, Ferus), at least one Grassy Knoll Primarch (Dorn) The rest are Missing™ mostly in Time Has No Meaning Semi/Im-Materium like the Eye of Terror or the Webway.

Angron (Khorne), Lorgar (and/or Perturabo depending on the overall popularity of their legions as top Undividied) and Fulgrim (Slaanesh) are almost certainly the priorities for Chaos. Each Daemon/God faction plus at least one Undivided Primarch,

Lion, Russ, and Sanguinius have to be the Loyalist priorities- one for each Codex. That gives 5-6 Traitor Primarchs, and 4 Loyalist meaning somewhere in there I'd assume they want to include 1-2 more Loyalists that will depend on demand. I would expect potentially Khan, Vulkan, and/or Dorn especially if they write Dorn to work in both Black Templar and/or Imperial Fists - certainly better than they did Guilliman whose successor chapters may or may not "Count As" Ultramarines.

Assuming they aren't heading towards an End Times Age of Sigmar transition to Age of Crapiness 40K (Yeah I'm still bitter about both of my Fantasy armies getting the transition shaft) there are a few things we can assume they're looking for out of 40K

Selling more models - they are a business.
Maintaining the Setting's standoff Status Quo
Cross Promotion with more books. And there won't be a lot of book main characters that don't have a model you can put on the table.

Edit to Add - I also believe that in order to see more loyalist Primarchs from the currently Codex Compliant Chapters, we're going to see them get their own Army Codex. The one book would have way too many special characters just in Primarchs - Which wouldn't be so bad it would give the other chapters a chance to get more than one Captain and - if they're lucky - a Chaplain or a Librarian.

Breton wrote:

 Delvarus Centurion wrote:

Breton wrote:
Both Loyal and Chaos.

We've got Robute, Mortarion, and Magnus.

They're making rumblings about Angron in the fluff with the return of Robute. If they do bring him back, I would imagine we'll see the Lion and Russ along with Angron. Both from a business and story standpoint. If Angron gets a model, it's 3 Traitor to one Loyalist. They've got to be hearing it from non Ultra players already. Story wise, three traitor primarchs could easy overwhelm one loyalist. One would assume this would have been the case if Magnus and Mortarian had just worked together instead of taking turns. The fluff would require a balancing as well so they don't have to answer why one traitor primarch doesn't keep G-Man occupied while the other two destroy the Imperium.

Further out could be a return of Sanguinius and the other dead. They're going to have to pull off a whopper of some plot armor to get them back on the field, but I can't imagine they'd keep only one faction book sans Primarch. I'd expect to see a return of Sanguinius in similar campaign fashion, possibly all of the deceased Primarchs - save Horus - coming from a rogue Cawl/Sangprimus Portum research project to regrow the primarchs and their legions - ending badly- Restoring the dead, and giving Chaos the Primaris marines with some sort of grand betrayal to keep the nature/nurture debate ambiguous. Many of the ambiguously dead probably would turn out to not be dead at this point. Dorn, Alpharius Omegon, Curze.

Well from the way things are going a long long time, unless they release multiple Primarchs which I don't think they will.

I actually do expect them to release multiple primarchs. I expect one of the next couple story campaigns to be the one to bring back multiple primarchs, and give Primaris to Chaos. The point of Primaris Marines isn't story advancing fluff, its game balancing (and model sales- which is why they went with new Marines instead of new stat lines). One book will give us Angron and at least one loyalist Primarch - the Lion or Russ or both. The other book will be all about giving Primaris to Chaos and will likely include at least one dead Primarch, likely Sanguinius Resurrected- I wouldn't be surprised to see it also Include Alpharius Omegon returning somewhere somehow (either Resurrected or more likely Faked Death revealed) behind the plot to get Primaris into Chaos and resurrecting Sanguinius to continue the Is He or Isn't He mystery surrounding which side he's really on.

They can't bring Horus back - at least on the side of Chaos where he was on par with the Emperor ( I could see him being brought back as a malleable <Chapter> Keyword primarch for build your own justified as he was "The Warmaster" and skilled at everything - well that and he has no Chapter/Legoin left - though they have the destroyed soul thing to retcon and its still way unlikely and far down the priority list) But the rest almost have to be on a schedule of some kind - the other "Codex" chapter primarchs are probably behind the "non-Codex compliant" simply so every book has at least one Primarch to play with.

Every Traitor Primarch but Horus is potentially alive - there are two grassy knoll conspiracies about Kurze and Alpharius Omegon.

There are two dead Loyalists (Sanguinius, Ferus), at least one Grassy Knoll Primarch (Dorn) The rest are Missing™ mostly in Time Has No Meaning Semi/Im-Materium like the Eye of Terror or the Webway.

Angron (Khorne), Lorgar (and/or Perturabo depending on the overall popularity of their legions as top Undividied) and Fulgrim (Slaanesh) are almost certainly the priorities for Chaos. Each Daemon/God faction plus at least one Undivided Primarch,

Lion, Russ, and Sanguinius have to be the Loyalist priorities- one for each Codex. That gives 5-6 Traitor Primarchs, and 4 Loyalist meaning somewhere in there I'd assume they want to include 1-2 more Loyalists that will depend on demand. I would expect potentially Khan, Vulkan, and/or Dorn especially if they write Dorn to work in both Black Templar and/or Imperial Fists - certainly better than they did Guilliman whose successor chapters may or may not "Count As" Ultramarines.

Assuming they aren't heading towards an End Times Age of Sigmar transition to Age of Crapiness 40K (Yeah I'm still bitter about both of my Fantasy armies getting the transition shaft) there are a few things we can assume they're looking for out of 40K

Selling more models - they are a business.
Maintaining the Setting's standoff Status Quo
Cross Promotion with more books. And there won't be a lot of book main characters that don't have a model you can put on the table.

Edit to Add - I also believe that in order to see more loyalist Primarchs from the currently Codex Compliant Chapters, we're going to see them get their own Army Codex. The one book would have way too many special characters just in Primarchs - Which wouldn't be so bad it would give the other chapters a chance to get more than one Captain and - if they're lucky - a Chaplain or a Librarian.

If you think Chaos are getting Primaris you are absolutely wrong. Why in the world would they create a new CSM range just to counterfeit that range with Primaris. That is ludicrous, no its tartan.

I hope they don't bring dead primarchs back. If they do, it's like.. What's the point of any of the lore?

Back in t'old days, Angron, Moderation, Magnus and Fulgrim all had Epic scale models and the fluff wasn't radically different- I think they'll be first back. Back then Guilliman was still asleep and yet the line held, maybe we won't see loyalist primarchs but new characters, like the Astronomican warp avatar thing (I forget the name) and some roided-up Primaris guys?

 timetowaste85 wrote:
We should get each Daemon one. They’re kicking around. Expect Lorgar, Perturabo, Fulgrim and Angron at some point soon. Alpharius possibly, but would annoy people. No Horus, no Curze.

Loyalists are tougher; most went missing or were killed. Sanguinious returning would piss off a large chunk of the 40k player base (more than Guilliman did). The Lion, Were-Russ, Khan and Vulkan could conceivably come back, and if the retcon for Dorn works, he can come back too without a hand (bionics!) No Ferrus, no Sanguinious. Corax...I don’t remember his deal. Maybe?

I agree the Demon ones should come back. I kind of expect they thought that'd be the way they were going when they started down the path of Magnus and Mortarion. I like the idea of Lorgar as a true undivided demon prince and Alpharius being similar to Bobby G in stat lines reflecting he never fully embraced chaos. Rather he turned against the emperor for other reasons.

My bet is that the Lion is who we'll get next. Hed be the easiest to bring back because the lore says where he is and what he's up to. He's sleeping in a rock. All GW needs to do is release him with a DA Standalone codex, don a top-hat, and carry their moneybags to the bank.

The one i'd be most interested in seeing is Corax since he went full eye-of-terror, if I recall correctly. It'd be interesting to seem him comeback all mutated but still loyal(ish).

Russ, Khan, and Vulcan could come back with the least amount of retconning. The lore says they just disappeared. Again, it'd be a great way to sell stand-alone codices. I wonder if it'd be full jumping-the-shark though to bring them back.

Bringing back Sanguinius would be full jumping the shark. I'd almost rather they bring back one of the lost 2 than pull a Sanguinius is back.

*Edit, changed Curse to Corax because I got them mixed up.

 lifeafter wrote:

The one i'd be most interested in seeing is Curze since he went full eye-of-terror, if I recall correctly. It'd be interesting to seem him comeback all mutated but still loyal(ish).

Curze is dead, killed by an Imperial assassin.

 Octopoid wrote:

 lifeafter wrote:

The one i'd be most interested in seeing is Curze since he went full eye-of-terror, if I recall correctly. It'd be interesting to seem him comeback all mutated but still loyal(ish).

Curze is dead, killed by an Imperial assassin.

You're right, I meant Corax. Sorry.

I kinda hope they don't realese all of them (the ones that are alive or MAY be alive).

I'd really only like to see Angron & Fulgrim accompanied by their own Codex for their respective Legions. That would "round out" all the Chaos-aligned Primarchs. Maybe Lorgar, but I could live without him, especially since Abaddon fills the role of "Primarch" for the vanilla CSM book

For the Loyalist, the vanilla Codex already has a Primarch, so I would doubt we would see Corax, Vulkan or Khan before we'd see either Russ or the Lion.

I really think GW is going to hold to "one per Codex" for Primarchs

-

 Octopoid wrote:

 lifeafter wrote:

The one i'd be most interested in seeing is Curze since he went full eye-of-terror, if I recall correctly. It'd be interesting to seem him comeback all mutated but still loyal(ish).

Curze is dead, killed by an Imperial assassin.

Is he? There are rumors he faked his death. As far as I know the only three confirmed dead without rumor are Horus, Sanguinius and Ferrus.

If you think Chaos are getting Primaris you are absolutely wrong. Why in the world would they create a new CSM range just to counterfeit that range with Primaris. That is ludicrous, no its tartan.

If I think Chaos Marines are going to get the same game balancing plan they came up with for Loyalist Marines - especially with all the foreshadowing they're doing about Cawl wanting to Primaris the geneseed of all the Traitor Legions, Guilliman ordering him not to, and yet not trusting him to follow those orders - I'm wrong?

especially since Abaddon fills the role of "Primarch" for the vanilla CSM book

Not really- The Primarchs are a combination Chapter Master Special Character + Special Character Daemon Large Rampaging Monster Beat Stick. Abby is everything but the large monster part... and that's - I think - most of the reason Primarchs have appeal over even the "normal" Special characters. They're huge centerpiece models that stand out from two tables away.

Bringing back Sanguinius would be full jumping the shark. I'd almost rather they bring back one of the lost 2 than pull a Sanguinius is back.

Oh I'm sure they'd absolutely love to have a redo of something so Sanguinius wasn't the only Primarch Option in a stand alone codex. But they're stuck. If they don't bring him back, people will be unhappy they don't get the super cool Loyalist Monster. If they bring him back I suspect fewer people will be less unhappy. They can't do it like they would the Lion and just wake him up, they'd have to re-grow him or some such.

All GW needs to do is release him with a DA Standalone codex

Pattern seems to be this sort of event starts in a campaign book. Between Gathering Storm and Vigilus, I would hope they don't do Ultramarines - again - even though my primary army is Ultras. The obvious story hook is the Imperium divided in two with Dante being top dog in the Non-Guilliman half. Of course, that points to Sanguinius again. With the Rock currently near Vigilus, and Vigilus near Fenris we could see either Russ or Lion. But Dante is top dog, and the drama available of Dante vs either doesn't have the same father-son angst as Calgar-Guilliman. Were Johnson not on the Rock, a Johnson on Fenris story would be entertaining including the Legion Rivalry complicating the Wolves attempts to help Johnson return to the Rock.

The flip side of Russ crashing into The Rock and discovering Johnson solves multiple problems - you get to reintroduce both evening up the Primarch math at 3 each, and you get to have some Hulk/Thor comedic rivalry as Russ steps forward to "reenact" the meeting of the Lion And The Wolf you see in the fluff and one-punch some Dark Angel veteran across the dining hall before getting a whiff of Johnson and tracking him down through the Rock like a blood hound.

Book 2 should bring out Lorgar, Angron or both. Might also see Book 2 is when they save the return of the Lion for in a dramatic rescue of Russ facing Lorgar and Angron simultaneously.

Hopefully, never. Maybe one more for the loyalists so both chaos and Imperium has an equal number of primarchs, but that's it. No more. Ever.

I'm 50/50 on the whole Primarch thing.

Part of me wants more Primarchs of both flavours. But I wish they hadn't introduced them into mainstream 40k. 30k makes sense cuz rezonz.

If they bring one back they should bring all of the living ones back then(specifically loyalist) and have daemon primarchs more available.

The 'cult legion' primarchs - the ones who had models in epic way back when - make a nice degree of sense for Chaos.

Abbadon is basically Horus mkII and Horus is one of the no-no characters to resurrect. Other than that, Lorgar is stuck in a room writing, Konrad Kurze is another no-no to resurrect, and frankly any CHARACTER in your alpha legion army can "secretly be Alpharius" - unless they die, when clearly it was actually just decoy - which just leaves Perturabo, who I'm not sure how you'd do since unaligned daemons are something more or less edited out of the history (Be'Lakor aside).

Bringing back the iconic triumvirate of Ultramarines, Angels of Death and Space Wolves (yes, I know that' technically four since AoD was Blood and Dark angels) makes sense. Jonson is easy to resurrect, and Were-Russ is fine if a big gnarly. As long as he's better done than the wulfen it'll be fine.

Sanguinius can be brought back, but ideally not as himself. If you were to essentially make him a super-sanguinor or to merge with Dante in some way (giving you an excuse to scale up and divine-ify the Dane or Sanguinor model in a way akin to what was done with Celestine) it would probably work better than just "yup, not dead anymore" and walking around like normal.

If you wanted a fifth to match the chaos numbers, I'd actually say Ferrus Manus. That sounds odd unless you read Master of Mankind, which heavily hints that 'ghost ferrus' may be part of the Legion of the Damned. Which raises an obvious suggestion as to whose skull the animus malorum is - and would allow an update to the legion of the damned and centurius into nice new plastics at the same time....

Curze is definitely dead. It’s talked about by witnesses extensively in the Night Lords trilogy.

I am of the the opinion that since the Primarch cat is already out of the bag, might as well release all the not definitely dead ones. In fact, I kinda thought that was the direction GW was going, but they are sure taking their sweet time for Return of the Primarchs Phase 2. I honestly thought more would have been released by now. It isn't at the top of my 40k release wish list (plastic updates/replacements for anything resin/finecast is), but its still kinda a odd that we got three and then nothing.

The problem is that there seem to be a lot more daemon Primarchs they can release compared to loyalist ones. Also, you have Angron, Fulgrim, Magnus and Motarium representing the 4 chaos gods. It can be themed around their legion plus the chaos god, so marketing wise, its more than two birds in one stone.

Loyalist Primarchs are a lot more niche. I mean, what's the fraction of space wolves players relative to the entire player base that plays loyalist space marines? (Its probably not even one quarter). And to make it a more thematic and holistic marketing push, they would do it with a new codex revamp, or a brand new codex for that faction (chapter).

So that means releasing Russ would require releasing a revamped space wolves codex complete with at least one or two new units. (Looks at thousand Sons and Death Guard as good examples).

Its not as simple as it looks. And even if they did it, they are catering to a much smaller player base because like I said previously, number of players playing specifically say space wolves is a much smaller number than the entire space marine player base.

Loyalist Primarchs are a lot more niche. I mean, what's the fraction of space wolves players relative to the entire player base that plays loyalist space marines

I mean you could apply that same logic to the Traitor Primarchs. I mean when did you last see an Emperor's Children army take the battlefield?

As a Blood Angels player would likes the idea of having some super hero character in my army like a Primarch I would not want to see Jesu.... Sanguinius come back.

Lion then Russ make the most sense lore wise and game wise.

Corax could be the most interesting. A Warp tainted Loyalist Primarch that can kick the teeth in on a full on Daemon Primarch. Could have very cool rules. Maybe like the Yncarne except popping up in shadows or something.

Vulkan would also be a fan favourite with very little Lore effort (Same with Khan) to bring back. Although he is one of my favourite Primarchs lore wise I think his rules would be quite bland.

Sanguinius should stay dead, but I could see a new Sanguinor model and rules that defacto are a "blood angels primarch" on the table top. in the same way Abaddon is.

I highly doubt we will get all the living primarchs back. Lion is def coming, same with Russ. I can honestly see GW pulling some bs and bringing back sanguinius. The rest I have no idea. Angron and Fulgrim I think are a guarantee for Chaos. Lorgar and Pert can come to but I dont think they will go that far. 4 primarchs on each side seens too much for me but its pretty realistic. Better question imo is who the 4th loyalist will be if they dont bring back sanguinius

I have a feeling Dorn is coming next. They made that Primaris upgrade sprue for the Battleboxes and haven't released it on its own yet. I think there's going to be a bit of a Fists release coming at some point.

I don't think whether new Primarchs are released or not is in any shape or form lore-based.


Magnus was designed and released, when the design/miniatures team were doing tons of Tzeentch miniatures anyhow, including Tzaangors, LoC, new Rubrics, etc.. So they just slapped together another big guy full of Tzeentch-details from the digital tool-box in CAD.

Same for Mortarion, when they did all the Nurgle.

Guilliman when they were playing with Marine CADs for Primaris (though he came out earlier).



If they now (e.g. over the next year or so) releases all the stuff they made while playing around with a design-library full of slaanesh imagery, they might do a Fulgrim while they're at it.

If at some future point they decide to, say, revamp the Space Wolves range and have a folder with 50 different versions of pelts, they might slap together a Russ.


When/if such a model comes through all the design stages and ends up with a green light, the can get's kicked over to the background writers "to make it work".

Seems strange that CSM would get Codex 2.0 before Marines got theirs. I reckon sometime soon, in the next twelve to eighteen months, there'll be another loyalist Primarch out. My money would be on Johnson or Russ.

I honestly expected to see Russ and/or Johnson when the SW and DA codices dropped for 8th since it was over a year since Guilliman had woken up. Since they didn't come with their codices, we have to ask, when will they?

Mortarion and Magnus came out when their respective Legions got promoted to full codex status so it would make sense that Fulgrim and Angron would follow the same pattern. Guiiliman awoke during a special campaign so I guess that is where we will next see a loyalist Primarch but again they missed the boat with Vigilus.

Given that GW tend to alternate campaigns between 40K and AOS, I would guess that we might see another loyalist Primarch in around 2 years time. There might be a big campaign where GW roll up all the FAQs and CA changes and produce 9th edition along with a few rules tweaks.

As for Loyalists, we have the following:

Dark Angels: Johnson is sleeping in the Rock, easy to wake up.
Space Wolves: Russ disappeared on a quest. Legends of his death and his armour were recovered but nothing else.
Blood Angels: Sangy is dead and should probably stay that way (although as a BA player I would love the model). Maybe release a buffed-up Sanguinor as a Primarch-lite in the same way as Abaddon is Horus-lite.
White Scars: Khan was lost in the webway and could simply pop out at any time because wibbly wobbly timey wimey.
Imperial Fists: Dorn is missing and presumed dead but his body was never found, just a charred hand. Interestingly, Dorn cut off Alpharius's hands before he killed him so maybe he faked his own death for some reason.
Iron Hands: Ferrus should stay dead IMHO.
Raven Guard: We now know that Corax is alive and well and kicking traitors in the EoT. He also seems to have found some non-chaotic way to level up since he was able to smack down post-ascension Daemon-Lorgar hard enough that he ran away for 9000 years.
Salamanders: Vulkan is another easy one to return since we now know he is a Perpetual. Busy guarding the webway gate beneath the Golden Throne but could come back, just as he did in M32 in the battle against the Beast.

If I’m right and they bring back one per codex army - Sanguinius has to be reincarnated in some way. Regrown by Cawl, a clone in the Emperor’s stasis created on his order in his grief. Hidden on Baal becauseSanguinius foresaw his own death and planned ahead, whatever have you. It’ll be a physical primarch, with the mind/abilities of Sanguinius. The memories are meh. Likely but not required. There’s going to be some fluff to differentiate between dead Sanguinius and new Sanguinius that won’t affect his rules very much.

I think we’re going to get one per god, and at least one of Lorgar/Perturabo for undivided. We’ll get DA, BA, SW, Ultras and at least one more loyalist based on which chapter gets played most. Khan creating a Codex: White Scars to placate the biker marine armies, Vulkhan if you think the Redeemer suggests a lot of folks play Salamanders, but Dorn for a Codex: Fists of Fury is pretty likely as Imperial, Crimson, and Black Templar players will add up fast.

I dunno, as I said I could see GW giving Blood Angels a new Sanguinor model instead, do that combined with a "near primarch level" ability boost and people'll be fine with it.