Warner Bros. have announced that Gotham City Impostors will be available beginning January 10, 2012, on Xbox LIVE Arcade and PlayStation Network and Windows PC.
They hae also announced that the beta for the game will take place in December, anyone wishing to take part can sign up at www.GothamCityImpostors.com.
Gotham City Impostors is a download-only multiplayer FPS where you get the chance to dress up as a customised version of Batman or the Joker in a 12 player battle for Gotham City.