IGN
The Xbox 720, or Project Durango, has not been confirmed by Microsoft, but next-gen games have been confirmed in various manners by developers and other sources. This page contains a list of likely Xbox 720 games with sources for each.
Next-Gen Call of Duty Developer Infinity Ward posted a job listing on its site calling for a senior animator "with experience in game development and an interest in working with next-generation technologies." [1]
Bethesda Game A job listing on Bethesda's site calls for "experienced programmers to work on cutting-edge technology for an unannounced game on future-generation consoles." [2]
Ready at Dawn Next-Gen Gam e The developers of the God of War PSP games are developing "an exciting new AAA IP for a Next-Generation home console game system." [3]
Next-Gen Sonic Game Sega notes that Sonic "won't become photo-real" in next-gen games and that he "will always remain stylized and will have that bright, colorful world. What the high hardware spec will allow us to do is make that more convincing." [4]
THQ Next-Gen Games THQ CEO Brian Farrell believes development for next-gen consoles offers "a tremendous amount of opportunity." [5]
After THQ's 2013 financial woes, the status of these games remain unknown.
Square-Enix "Luminous" Games Square-Enix is showing off its "Luminous" tech engine, capable of highly realistic next-gen graphics. Luminous will make games 30% cheaper and shorten development cycles. [6]
Crytek Next-Gen Game Perhaps Homefront 2 or TimeSplitters 4? Crytek was the company that originally outed the Xbox 720's Durango codename.[7]
Lionhead Studios Next-Gen Game The studio (sans Molyneux) has been on the lookout for programmers with experience using the Unreal Engine, and "significant experience leading teams designing and implementing modern rendering engine." Example given is DirectX11, which is rumored to be compatible with the Xbox 360's successor. [8]
Remedy 'Future-Gen' Game Alan Wake developer Remedy posted on its community forums that it is hiring more than 20 people for work on a game for "future generation consoles." [9]
I gathered this info from another forum:
"Black Tusk Studios (working on a new AAA core ip franchise)http://www.eurogamer.net/articles/2012-11-29-new-dev-black-tusk-studios-working-on-microsofts-next-big-entertainment-franchise
Microsoft Studios Victoria (another new core AAA studio)http://www.youtube.com/watch?v=xt56feJEpqM
Rare is expanding a new AAA core studio and hiring for developers with experience in Action/Adventure and FPS genres http://www.eurogamer.net/articles/2012-05-17-rare-hiring-for-multiple-aaa-future-console-releases
MS has built a Core studio in Redmond that has top talent:
Alex Liu- former Naughty Dog Game Designer on Uncharted 3 and worked on The Last of Us
http://www.linkedin.com/pub/alex-liu/2b/1a9/14
Don Norbury- former Irrational Games AI Lead on Bioshock Infinite http://www.linkedin.com/in/donnorbury?trk=pub-pbmap
Clint Bundrick- former Irrational Games Combat Design Director and Principal Combat Designer on Bioshock Infinite http://www.linkedin.com/in/clintbundrick?trk=pub-pbmap
Joseph Faulstick-former Irrational Games Producer on Bioshock Infinite and Bioshock1http://www.linkedin.com/pub/joseph-faulstick/4/42a/702?trk=pub-pbmap
Ian Vogel-former Irrational Games Senior Designer on Bioshock 1 and Game Designer on System Shock 2 http://www.linkedin.com/in/ivogel
John Howard-former Halo Combat Evolved Lead Designer
Lionhead is working on a new ip http://www.eurogamer.net/articles/2012-05-16-lionhead-making-mmo-like-new-ip-for-next-xbox-report
Ryse is a new ip from Crytek
Alan Wake 2 is rumored to be a Xbox 720 launch title
Bungie's new ip Destiney rumored as the Xbox 720 flagship launch title"