You can no doubt imagine the kind of shambling corpse that'll be trotted out as Guitar Hero 6 (or whatever it ends up being called), and that's not even bringing up the inevitable band-specific, re-release and handheld versions we can no doubt expect from the series.
Call of Duty, though, that's a little more interesting. With this month's Modern Warfare 2 developed by Infinity Ward, next year is a "Treyarch" year, with rumours suggesting the game has moved completely away from the Second World War and will be set in an era with not only more menacing Russians, but better music as well.
As for Spider Man, yeah, he's back, along with a Shrek game that'll no doubt be based on next year's Shrek movie.
Good ol' Activision. They're nothing if not dependable.