The list of Xbox One Games so far...
These games were confirmed to be next-gen Xbox games at the Xbox announcement on May 21, 2013. At the Xbox One announcement Microsoft claimed to have 15 Xbox One exclusive games in its first year, with 8 of those being new franchises.
List of Unconfirmed Xbox One Games
These games may be coming to Xbox One but have not been explicitly confirmed for the next Xbox yet.
|Source and Information
|Wolfenstein: The New Order
|Bethesda and MachineGames’ next Wolfenstein game has been announced for "next-gen consoles" and is coming in Fall 2013.
|Before the release of Halo 4, 343 Industries confirmed that it was the first part of a new Halo trilogy.  In 2012, 343 job listings were posted “to help create the current and next generation of game visuals in the Halo universe.”
|Dragon Age III: Inquisition
|Despite being announced by BioWare for a release in 2013, the resume of an EA Shanghai level designer suggested that the "scope" of the game has changed and that it "will be postponed to 2014" and "target next gen platforms."
|The Evil Within
|The newest game from Resident Evil creator Shinji Mikami was announced by Bethesda for a 2014 release on "next-generation consoles,"
|Next-Gen Family Game
|An anonymous source suggested that the next Xbox will launch with “a family game set on an island with Pixar movie-style graphics” that “will utilize Kinect to scan a body and generate a virtual character in the game.”
|The Witcher 3: Wild Hunt
|Witcher 3 was officially announced by CD Projekt RED for release in 2014 and is set to target "all top of the line consoles and PC." It was advertised as "a next generation RPG."
|Next-Gen Zombie Game
|An anonymous source suggested that the next Xbox will launch with "a zombie game," which has caused some to speculate that it could be Dead Rising 3.
|Rainbow 6: Patriots
|Ubisoft CEO Yves Guillemot said Rainbow 6: Patriots is still in development and "there’s a good chance it can be” pushed to next-generation consoles.
|Rumors suggest that Mafia III is in development at 2K Czech and was delayed in order to shift to next-generation consoles.
|Bethesda confirmed that an early version of Doom 4 "did not exhibit the quality and excitement that Id and Bethesda intend to deliver and that Doom fans worldwide expect" and was canceled in favor of a new one. Rumors suggest that the game is targeting next-generation consoles and that a planned sequel to Rage was canceled in order to add more members to the Doom 4 development team.
|Ready at Dawn Next-Gen Game
|The developers of the God of War PSP games are developing "an exciting new AAA IP for a Next-Generation home console game system."
|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.
|Homefront Sequel Game
|Perhaps titled Homefront 2, Crytek is developing this game (and was the company that originally outed the Xbox One’s Durango codename.)
|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.
|Rare ’Historic’ Franchise
|Rare says a "Historic" franchise will be making a comeback. This could easily be Perfect Dark (Zero was a launch title for the 360) or even Banjo-Kazooie. It could also be a Killer Instinct title.