To me it seems like its a mixture from all the films. It has the Tim Burton style with the cockpit look, the Schumacher slimness (one seater) and bat fins, and the back end of the Nolan tumbler.
Don't think it's a one-seater. Wouldn't make sense with the split in the windshield running down the middle.
Oh no, don't even joke about that :eeklooks like an alien spaceship if you ask me, I hope that's not what they have done