It seems like interviewing Gary Oldman is the only way you’ll get new details regarding The Dark Knight Rises.
According to Oldman, Nolan knows the ending of the film, but he hasn’t written it in the script in order to keep it secretive. Nolan just loves to tease us.
Check out Oldman’s statement:
“To get into the production office, you have to have someone meet you and there are keys and various doors that lock. The script you read in the production office, and there is no ending because [Nolan] tells you the ending so that it doesn’t leak and get out, and people spoil it on the internet.”