Board Thread:General Discussion/@comment-24317446-20160321225110/@comment-27565137-20160324024824

Honestly although I respect your opinion/theory, I can't deny the holes in it. And the main hole in it, it's the idea that for whatever reason Aizen all this time although evolved, decided to remain trapped.

I don't know about you, but if what your theory implies was true, then Aizen would not allow himself to remain trapped. And Soul Society would have no way of keeping him trapped.

Also you say that Urahara knew very little about the Hougyoku while Aizen knew everything. But here's the thing, Aizen wasn't that much better. He completely failed to realize what really happened to Ichigo and how much more powerful, Ichigo was. Also why gloat about being just about to transcend and then do an act about losing his powers? Aizen never strike me as the unnecessary actor. He was fake when he needed to be, but after he revealed his true colors, he never again played less than what he really was. And Urahara had more than a century to study the Hougyoku. Urahara's initial idea of the workings of the Hougyoku and that Aizen criticized, was when Urahara was still a member of the Gotei 13. Since then he had plus 100 years, to perfect his ideas and understanding of how the Hougyoku really worked.

Has for why the Hougyoku didn't simply separate itself from Aizen when Ichigo attack disintegrated him. Well we don't know the details of how that merge was made or how it worked. Maybe once a certain level of merger was achieved not even the Hougyoku will could break it. And now the Hougyoku is stuck with Aizen.

Either way I honestly doubt Kubo is gonna bring the Hougyoku back on scene, even if Aizen takes a more direct action in the fight with Yhwach. If anything seeing Yhwach powers. He might very well take the Hougyoku for himself and after that kills Aizen, who goes in thinking he can take on Yhwach because he thinks he's immortal and as such untouchable.