I don't know if you guys have heard, yet, but they're coming out with a new
40k MMO. This one's called
Eternal Crusade and they have the four basic factions of Space Marines, Eldar, Chaos Marines, and Orks. It's been in development for some time and is supposed to come out sometime either late this year or early-to-mid 2016
Orks are basically just going to be free-to-play to keep their hordes at high numbers - though you can still buy Orks to get the stronger versions of 'em.
Space Marines are only available through buying, and they're starting out with Blood Angels, Ultrasmurfs, Space Wolves, and Dark Angels, though they will be adding more Chapters as time goes. There was a LOT of hate for not adding Templars - Eternally Crusading and all that.
Eldar and Chaos Marines are only available through buying them, and Chaos Marines are starting off with Black Legion, Word Bearers, Night Lords and World Eaters.
The game looks pretty cool, you guys should check it out.
Also, if there is already a thread for this, I apologize because I couldn't find it.