Battlefield: Bad Company 2. Specifically, the trailer for this week's episode promises that the show will display the first footage of the game's single-player campaign (we've seen multiplayer already, after all). Beyond the Bad Company 2 footage, GTTV will also have a clip from the upcoming Halo Legends anime collection. This might be a stretch, but we're guessing there will be Spartans in it.
As always, expect any juicy details to wind up here on Joystiq once the episode airs.