Well, we have heard news about Christopher Nolan saying that 'The Dark Knight Rises' is going to be the last Batman movie from him. Some of us doubt the news as the previous Gotham-based movies from the director (who is also known for his 'Memento' and 'Inception') received massive positive receptions, while some believe and mourn. Well, guess what? Christian Bale and Gary Oldman now confirm it, too.
I hope I am wrong, but it is quite hard to imagine whatever Batman movie that comes forward after this (from any other directors) would be at least as good as Nolan's, if not better.