According to Michael Caine, Batman sequel is cast

This comes fresh from MTV, who interviewed Michael Caine at the Toronto Film Festival. Caine has apparently confirmed rumors that Johnny Depp will be playing Riddler and Philip Seymour Hoffman will be playing Penguin:

"I was with [a Warner Bros.] executive and I said, 'Are we going to make another one?' They said yeah. I said, 'How the hell are we going to top Heath?' And he says 'I’ll tell you how you top Heath — Johnny Depp as The Riddler and Philip Seymour Hoffman as The Penguin.'"

So there you have it. Confirmation from someone inside the production. But then again, this could just be Caine spinning rumors. What do you all think?