No official word on what the content will be, other than that it will be available at launch.
Among the announcements during New York City's Xbox One launch event last night was the reveal that Metal Gear Solid V: Ground Zeroes will be getting content exclusive to Microsoft's platform. Geoff Keighley, host of Spike TV's launch coverage that night, made the announcement adding that the content would be available when the game launches next year. There was no indication of what the content would be or whether it would also be available for the Xbox 360 version of Ground Zeroes. The announcement was also seen in a montage trailer of Xbox One games.
Metal Gear Solid V: Ground Zeroes is slated to launch spring of 2014 for Xbox 360, Xbox One, PS3 and PS4. Last week, it was announced that PS3 and PS4 players would receive an exclusive "MGS 1 deja-vu" mission.