Sure, the game's not burning up the PS3 scene like it was probably hoped it would, but Guerilla are still banging away on updates for Killzone 2, the latest of which appears to take the form of some new DLC.
Reader Corey sends us this list of trophies for the game, which were updated today to include mention of stuff not previously spoken of by Sony or Guerilla. It appears there'll be two new maps: "Suljeva Cliffside" and "Arctower Landing", along with two new weapons (well, new for multiplayer), the flamethrower and boltgun.
No idea on when these will actually appear, or how much they'll cost, but if they're turning up on official trophy lists, they can't be too far away.