User blog comment:Xilinoc/Ch. 682 - The Two Sided World End/@comment-3185063-20160714185803

I'm predicting that, if Yhwach is flanked by tons of characters, he will use Zanka no Tachi. This is also where I believe the apparent news of Momo's "Bankai" will come into play.

Bazz-B can cancel out Yamamoto's flames with his own. Momo's Shikai has known fire abilities. Would a Bankai be able to do the same thing?