So /r/Bleach says next week is last.
Which means there's so much unanswered stuff, there's also plenty of unresolved fights. Holes Kubo wrote himself into, dug deeper for weeks, and now will leave untouched.
A few bankais that would be interesting to see, the fate of of Byakuya, Hitsugaya, etc, something worth being zero division from the zero division. They resurrected Ichi'be (the large monk) and haven't seen anything from him.
All this anticipation ever since Ichigo's swords were restored, and he's basically been Chad.
One chapter to answer all this and so much more.
Since Aizen is involved in this fight, we might at least see his Bankai.