At the People's Choice awards, MTV quizzed Dark Knight producer Chuck Roven about Batman 3:
If you're too lazy to watch the video, the good parts:
I know that Chris [Nolan] and [writer] David Goyer are talking and thinking. We're hoping, of course, that they find and rest on something that they'll find is worthy to do, but we don't know anything more than you do right now.
This is a little more optimistic sounding than a lot of people have been about Nolan's interest in a third movie. In the past it's sounded more like "if a good enough idea comes along he'll be back," but this sounds more like active brainstorming. Fingers are still crossed.
Also, the Directors Guild of America award nominees are up and the Dark Knight gets another nod.