According to an interview with director Christopher Nolan (previous Batman movies and Inception), the title for the new Batman movie will be:
The Dark Knight Rises
Some more information for you – it seems that Nolan will not have the film available in 3-D, as it is too "distracting."
The final bit that is known about the movie – When asked about the antagonist (villain) for the new film, Nolan very bluntly responded, "It won't be the Riddler." He also mentions that a lot of the same characters and a few new ones will be in this new film.
Question of the Day – Who will be the new Batman villain? Why him or her?