Rebellion is the studio that made the first AVP game. Multiplayer is going to have a few unique modes that I'm looking forward to:
Infestation - A bunch of marines and one alien. As the alien takes out marines, they respawn as aliens. Last marine wins.
Predator Hunt - A bunch of marines and one predator. The predator has a timer that increases as it gets kills. If the timer runs out or the predator is killed, it respawns as a marine, then somebody else becomes the predator.
This is straight from Rebellion in an interview I conducted with them for another publication.