Well, while I'm tentatively pleased with Bale's casting, I'll withhold judgement on whether the film will be good or bad.
I think it's fairly obvious that WB sees this as a "reboot." They've selected a much younger actor to portray the Dark Knight and they apparently don't intend on having Robin.
I am not pleased to hear that they're thinking of having multiple villains. As far as i can tell, multiple villains are there for the marketing element of the film rather than for the story. Ra's Al Ghul, or The Scarecrow, or Two-Face, or The Joker, or Bane, or most of The Batman's enemies can carry a film on their own. Indeed, the only major villains who could work with another villain are The Catwoman and The Penguin. I think both Al Ghul and The Scarecrow are too much.
Frankly, I think they should have gone with a Year One/Long Halloween story-line. Concentrate on Batman and his Wayne alter ego as he arrives in Gotham to clean it up. This way, you could have a dynamic Gordon and even introduce Harvey Dent early on. Have The Roman or some other lesser known, but important Bat-mythos villain on center stage (actually, have him relegated to a role similar to that of Capone in The Untouchables). Have The Penguin as his number two or three lackey, and a nameless thug as his assassin who, towards the end of the movie falls into a vat of chemicals. This way, you set the foundation for future films, you introduce a number of important characters, and you don't make the mistake of making the movie about the villains.