Okay, i just found out about this after i read chapter 684. It seems like WTFOMG, whyyyy????
So many plot unexplained, aizen, shinji and love's bankai havent revealed. That's why the last chapters seems pretty rushed, like the Gerard x soul society fight ended up disappointing, as well as Uryuu x Haschwald fight. And Chad doesnt actually do anything in this quincy arc.
Is Tite Kubo personally attacked or something, or something disturbed the contract?
Well, for good manga like Bleach, it is such a disappointment to end like this. Just like Yuu Yuu Hakusho manga.
Hope there will be future spinoffs like Naruto to contain remaining bankais, kenpachi's power, and royal guard.