Epic Games' Cliff Bleszinski is booked to appear on a US late-night talk show next week to show a "new game".
"Game designer Cliff Bleszinski (@therealcliffyb) debuts his new game on Late Night next Thur. Set your TiVos! And your Xboxes," Late Night host Jimmy Fallon tweeted overnight.
Kotaku reports that the show's producer wouldn't be drawn on any details when reached for comment.
Bleszinski himself restricted his tweets to comments on a UFC fight he was watching, including "Did I just get... blood on me?" Amazing scenes.
Edge recently claimed that Gears of War 3 is due out next April, and it's certainly in development one way or another so that would be one possible candidate for a reveal.
Another is Epic studio People Can Fly's unnamed shooter - due out through EA - which is believed to be called Bulletstorm and expected in early 2011.