What if Aizen was a goodguy? Assume that Unohana takes Aizen's place as the evil mastermind, since she has that same aura of "I'm completely trustworthy, honest" that Aizen does.
Instead of setting up Hinamori to fight Hitsugaya, she frames Ukitake. She's deliberately made herself into a mother figure for Isane, so when she fakes her own death using a fake body the letter she leaves for Isane accuses Ukitake. Isane attacks an illness weakened Ukitake, who is defended by her sister, Kiyone, generating lots of angst and chaos, just like in the original. Central 46 is replaced by some clones or puppets of her own creation.
How does this change things? What would Good Aizen do? How would he spend his time after the SS arc?
Instead of setting up Hinamori to fight Hitsugaya, she frames Ukitake. She's deliberately made herself into a mother figure for Isane, so when she fakes her own death using a fake body the letter she leaves for Isane accuses Ukitake. Isane attacks an illness weakened Ukitake, who is defended by her sister, Kiyone, generating lots of angst and chaos, just like in the original. Central 46 is replaced by some clones or puppets of her own creation.
How does this change things? What would Good Aizen do? How would he spend his time after the SS arc?