Originally Posted by gorila
when Bruce Wayne asks Lucius if the suit will hold dog bites, Lucius says even Cats
The Joker can and should be recasted. Just because we know that the previous actor who portrayed the joker is gone, that doesn't have to actually happen to the character. Its a movie, and what we enjoy is the actors performance, not necessarily the actor himself.
Having the Joker just re-casted would be an insult to all Ledger worked for, his performance was praised and is at such a high point. By recasting your just saying oh we can just bring someone new to a role and completely forget who was the Joker in the last film. This isn't Rachel Dawes were talking about.