Actually, a prequel is the way to go. I think thy should do Edward's rebellious years, stalking psychos and cleaning up the streets. Maybe in seeing what that period of his life was like and then explore his parallel yet solitary existence with the Cullen clan, we could understand his actions in New Moon better.
A little action adventure vampire world flick would be fun to see and of course I read everything Twilight.
Midnight Sun.... Midnight Sun... Midnight Sun (hopes chanting might send creative vibes to Stephenie)
It's all up to Stephenie. I just hope we all get the chance to read Midnight Sun, just like Rob Pattinson did!!!