http://www.youtube.com/watch?v=_iURpMKHPZU The new multiplayer mode will be developed by Splash Damage studios and it has been dubbed, "Invisible Predator".
It's an asymmetrical turf war between eight players divided into three groups: three ruffians in Joker's gang, which shoot at three members of Bane's gang, while Batman and Robin stalk and incapacitate criminals on either side.
Not too sure how I feel about this. I won't go down the old road and preach how the series is awesome without multiplayer and it will kill the franchise. I think that's always a bit of a drastic response. I like the idea of this game mode and it sounds very cool in theory but again it's just something I'm going to have to play first to share an honest opinion. Which I will!