I'm a long time lurker but I wanted to share what I just came across this morning. This hobbyist that I follow on Instagram has put up loads of snippets of the new codex books from Dark Imperium! You can find them all here:
https://www.instagram.com/canhammer_yt/ (apologies if posting someones insta url on the boards is a taboo, I would copy them over but for some reason I can't actually get on to Insta on my
pc 
)
A quick summary of some of the datasheets that are after the above link:
Land Raider - Toughness 8 with 16 wounds and 2+ save. Can also transport jump pack infantry which take up as much space as a terminator. Centurions can also be transported but take up 3 model spaces. Crucially a Land Raider
CANNOT transport anything with the keyword
Primaris!
Power of the machine spirit - can move and shoot with no penalties
LRBT - 11 power and can include up to 2 more tanks in the unit for 11 power each. No info on the traditional points cost. Can move and shoot its
TURRET weapon without a penalty. The sponsons and hull mounted weapon are still subject to the movement penalty.
Rhino Primaris - this has the orbital array weapon shown in the
BA leak the other day.
Baneblade - Toughness 8 with 26 wounds
Imperial Guard Orders
Ghazghkull
Wraithknight
Hive Tyrant
Necron rules and points costs including this: Reanimation protocol - resurrect on a 5+ at the beginning of your turn. If you fail this roll then you can just roll again on your next turn and the turn after that!
Nightbringer and the Deceiver - Nightbringer will always wound on a 2+ with death gaze and the scythe unless it's attacking a vehicle.
Lots of Dark Eldar stuff
Plague Marines from the starter box "mini-dex" - 7 power for 4 plague marines and 1 plague champion. Can add 2 more marines for 2 power or 5 more marines for 6 power. Toughness 5 with 1 wound and 5" movement
Have a look through it all, there's some interesting things in there