Batman Franchise Over?

With the last movie in Christopher Nolan's Batman trilogy coming out this weekend, I have a question that needs to be asked - is the Batman franchise over?  Seriously, because these last three Batman movies were so awesome, is there any way to make a new Batman movie that won't be compared to and fail to live up to the this trilogy?  I honestly don't think it's possible.  Therefore, is the Batman franchise dead?  Or is some idiot going to come along and cast an actor as Batman that has no chance of living up to Christian Bale and make a movie that will pale in comparison to Christopher Nolan's vision of the Batman universe?  After having seen these movies, I always thought Nolan created a perfect mix of a comic book character in a real world.  It always felt as if Bruce Wayne/Batman could actually exist in our world and that his villains were not unrealistic, and that they could be real people terrorizing our real public.  Sure, some of the things that the Joker did was kind of outlandish and he probably wouldn't have gotten away with it in our universe, but a crazy person running around with makeup on could and probably has happened.  While Tim Burton's two movies were very good, I couldn't imagine it really happening in our world like Christopher Nolan's adaptation did (and the other two movies aren't even worth mentioning, they were too ridiculous).  In any case, I can't wait to see The Dark Knight Rises, but I also have to realize that this might be the end of the Batman franchise for a very long time....or at least until a movie studio casts Shia LeBeouf or that kid who played Peeta from The Hunger Games to play Batman and ruins the franchise more than the George Clooney movie did.

"Alright, so maybe a guy in a costume riding a super expensive motorcycle isn't exactly something you would see on an everyday basis, but it's still possible.....maybe."