I’m hoping the story will be fleshed out more too, but I’m not counting on it. If it’s being done by Studio Pierrot than their “anime only” materiel leaves a lot to be desired.
Bleach is really cool in concept, but a flawed gem in execution. Both the Arrancar and Quincy Blood War arcs started off really strong but suffered from tremendous pacing issues as they went on. I found they became an incoherent mess towards the end with rushed conclusions and abandoned plot points. I assume Kubo suffered writer’s fatigue and just wanted them done; he can’t really write or plan long-term.
Still, I’ll cross my fingers and hope they’ll take the opportunity to fill in the gaps. Bleach’s ending wasn’t necessarily bad, just not very satisfying. It needs to be extended on, at the very least. The larger supporting cast deserved some closure and we got… basically nothing.