Christopher Nolan will be dedicated to 'Inception' until it's release in July.
Batman 3 then needs to be (among other tasks) written, storyboarded, cast, scouted-for-locations, shot, edited, additional SFX and voice-work, promoted etc.
2 years is being optimistic for a film of this scale!
|EDIT: I'd personally like to see Joseph Gordon Levitt as The Joker if they brought back the character.. an actor that impresses me more and more with each role he takes on!|
I personally want to see an intimidating Mafia-type Penguin played by Phillip Seymour Hoffman, after watching Mission Impossible 3 I was reminded how good he is at raising the quality of a film by being a nasty bad-ass.
Robin would work if he was a replacement for Batman---bats is on the run so a new guy takes the reins, they join up near the end. Nothing campy, just a cool tactical duo of highly trained warriors. In fact, Levitt would make an awesome Robin.