I loved the film. *just got back from seeing it* I was surprised to have Harvey Dent transform into Two-Face in this film though... I was expecting them to set it up for him to be the villain in the next one, if they make a next one. Which, they could still do as the fall wasn't very lethal and you don't see a coffin during the memoir of Commissioner's Gordon's. They might have stashed him away somewhere.
And a hint about Catwoman making an appearance later on can be seen when they discuss the armor holding out against dogs... "It'll hold up against cats" or whatever the line was. We might be seeing her after all.
Of course, these are all if's. It would be fine if they didn't make another one, with the way this one ended, but if they do... Well, there you go.
Jealousy is the tribute mediocrity pays to genius.~ Fulton J. Sheen