Come on though man you no when you watch that trailer just listen to the way Heath sounds that's awesome and then look at the bit in the dark where Bat's is on his Batcycle and Jokers standing their with a Katana sword he looks so badass and scary.
If this movie blows hard then i'll be the first to hold up my hands and apologise. Apart from the pictures of the makeup running then it's pretty much perfect i mean seriously the mouth thing is cool but it's only in this movie.
And R.I.P Heath Ledger even if Joker makes another appearance in the next bats movie which i doubt personally out of respect but maybe he will maybe Nolan will change how he looks. After all it is year 2.5 of bats history and Joker just starting out. Obviously he aint 'the crown prince of crime' straight away so like a cameo could show him as the slick underworld leader joker we all know in the next movie.
The comics have changed back to normal joker look already.