If you're wondering whether or not The Joker will play a big role in Arkham City's goings-on, you'll need to stop wondering now. Seems like the clown prince of crime has plenty on his plate... you know... like Batman... and all the other lunatics holed up in Batman: Arkham City's open world.
Nevermind the fact that The Joker and The Penguin have split custody of those hulking, formerly joined at the shoulder twins. Look at all those thugs Batman's got on his hands! We'll have to wait and see how Batman handles The Joker... and Hugo Strange... and Two-Face... and Catwoman... and Harley Quinn... and The Penguin... and Deadshot... and Mr. Freeze.... Oh shit.