Heres the review
Batman: Arkham City picks up months after the events of Asylum. Former Arkham warden Quincy Sharp now reigns as the mayor of Gotham City, and he's moved the bad guys from Blackgate Prison and the inmates from Arkham Asylum to a cordoned off area in the heart of Gotham. This is Arkham City, Dr. Hugo Strange runs it, and Batman's job is to see what the hell is going on inside. It's an interesting story that starts with one of the best openings in modern games. After two years of dreaming about where this sequel would go, Batman: Arkham City delivered and hooked me. That can be said for most of the game.
Batman Arkham City hits stores October 18th, 2011!