POSSIBLE SPOILER: Based off youtube: For what its worth.
I just watched a "leaked trailer/teaser." In this video, it shows that in the movie, (most likely the end) a man sits in darkness, & flips a coin similar to that of Two-Faces.
Now then.. My Official Thoughts:
Jack Nicholson was by far the greatest & will continue to be the greatest Joker ever played. I won't say Ledger won't give me the showing of a life-time.. but Nicholson has the character nailed.. & to me, I've never seem anything with Ledger to prove he can play this type of character. On a plus side.. they're bringing in (from the looks of it) someone to play.. (I think her name was) Tricky. The girl that goes with Joker, as a side-kick. I loved her character.. & if she's in the movie, I'll be happy. (not overly thrilled, but happy none-the-less)
I like that they're going darker with these movies, as that was how Batman was intended to be. That kiddy/cartoon/childish crap that they swerved to in Batman Forever, then continued with in Batman & Robin was nothing but awful.
I liked Micheal Keaton as Batman, but Christian Bale plays a nice role too. Similar to my love for Nicholson playing the Joker.. Tommy Lee Jones, in my opinion, nailed the Two Face character off the charts. (even for the movie turning to kiddy crap) The guy they'll turn to, to have play the Two Face character in the third installment.. once again, I don't know if he can be the type to pull off the role.. & finally.. I seen a picture Jake posted on what is an assumption on what they'll have him look like..
PLEASE, I'm BEGGING ANYONE.. do NOT make him look like that. Thats by far the worst make-up job I've seen in ages. I liked Tommy Lee's, & like Jake said.. just keep it simple.. it was acid that burned his face to begin with.. so just make it a horrible looking burn.. don't make it cartoonish.