I agree with KellyC from the first post that an XMen movie (or movies) dealing with Apocalypse would be excellent. They've introduced Angel into the series now, so they could easily bring in Mr. Sinister and go from there. But since I've lost faith in the francise, I don't see it happening. Also, I would also love to finally see Gambit in the movies, he's always been my favorite and has been sadly missing. Emma Frost I would pay money to see pretty much no matter what...hottest comic book character ever.
Well, probably not true, but she is pretty awesome.
I agree with willravel that the music in Batman Begins was disappointing. The score from the original Batman movie is so wonderful and iconic that it would have been great to have worked that into the movie slowly. Slide in small motives throughout the film as he increasingly becomes more "Batman," and bring in the full blown theme at the end during the final scene or credits. But since they chose to do new music, I agree that they needed something stronger, some sort of identifying theme.