Ok, so I guess that they have announced that they are going into pre-production for this early 2007, and that they have signed up Heath Ledger to play the Joker. After some initial shock I think that Ledger might actually be able to pull it off ok. Being Australian he is at least partially mad already, so there is that. I can imagine his face giving a creepy smile and it working, so there's that also.
I still have my reservations, but I liked the first movie so I will wait and see how they handle things.