The next-generation Xbox may be codenamed “Durango” if a Tweet from a Crytek developer is to be believed.
“Enjoying the Durango developers summit in London. So far, great swag and interesting talks,” said Sean Tracy, a senior technical designer at Crytek.
The Tweet has since been taken down, but The Verge managed to get a screen shot of it before that.
Crytek is known to be working on the Microsoft exclusive Ryse, formerly Codename: Kingdoms, that was revealed at E3 2010.
Keep in mind, this would be most likely be only a codename similar to how Kinect was once Project Natal.
For now, Microsoft has not yet announced anything concerning future console generations.