User blog comment:Xilinoc/Ch. 683 - The Dark Side of Two World Ends/@comment-2211792-20160721122008

Yhwach broke all bankais? Sonova, that means he is the only one who knows about all the bankais we haven't seen yet and won't see now! Seriously though, what a lazy excuse not to show new bankais anymore.

On the other hand, it makes me remember what Ichigo asked Quilge Opie so many chapters ago. "Are you afraid of bankais?" Why do Quincies either steal or break them?