[hider=My thoughts]AU is the only way to go. Seriously, if you include canon characters than everything is doomed to fail. Best case scenario with canon characters is that it devolves into some shitty fanfic where Ichigo and Chad got married and had ten daughters, all with auto regeneration, giant hollow arms and dual Zangetsu's. Being Human-Quincy-Hollow-Shinigami hybrids, they're all naturally stronger than ordinary Shinigami and can kick anybody's butt in a fight, so they're all captains.[/hider]