Our guy told BOF that in his opinion, the longer we don't hear a Nolan/B3 announcement in 2010, the less likely it is that the director will return. (I don't know if I necessarily agree with that since I'm of the belief that Chris has already signed on.)
It was also said that Batman 3 would be moving forward with or without Nolan, but we'll have to wait and see how this new film develops. We'll be sure to keep you posted whenever we have new information, so stay tuned.
The Dark Knight Rises was released July 20th, 2012 and stars Tom Hardy, Christian Bale, Anne Hathaway, Liam Neeson, Joseph Gordon-Levitt, Gary Oldman, Marion Cotillard, Morgan Freeman. The film is directed by Christopher Nolan.