Featuring Batman, Wonder Woman and Lex Luthor, it will let players battle it out in the multi-tiered Gotham City arena.The demo will be available from April 2 on PS3 in the US and the following day on PS3 in Europe, when it'll also hit Xbox 360. A Wii U demo of the game, which is in development at Mortal Kombat studio NetherRealm, hasn't been confirmed.Warner recently announced the first Injustice: Gods Among Us DLC, which will be available at a reduced price as part of an upcoming season pass.The publisher has confirmed an Injustice: Gods Among Us release date of April 16 in the US and April 19 in the UK.