Q: Would people like to have the chance to lead their own Arcs later in the RP?
A: I would!

Q: As Bleach is a verse centered around conflict between factions and inviduals, it stands to reason that an RP based on it will also be as such. The question is, what races do people prefer to be playable? Shinigami, Arrancar, Quincy, Spiritually Aware Humans, etc etc.
A: I think we should limit the races a person can play to Shinigami, at least for the first part of the rp.  

Q: Would people prefer the story's villain faction to be playable, or ought they be controlled by the GMs entirely--or is a middle ground best?
A: Controlled by the GMs

Q: Should there be a limit to how many characters a player can make?
A: I say one, but that's only because its easier to follow what's going on, in my opinion.