Great list! Interesting what you say in #5. Fortunately, Kripke hasn't been too detailed on any of the "great ideas" for this season. Maybe they kept quiet to avoid the horrendous backlash of the last 2 years. But my feeling at the end of last season was that this season is full of possibilities. (Oh, I think there was some backlash about Sam purportedly doing while Dean was in hell, but it seems to have died down.)

Motorcycles! Or horses!! Eeeeee!