Board Thread:General Discussion/@comment-10786787-20130613005503/@comment-8986886-20140331065254

Sternritter M wrote: You mean, activate Bankai, 1 super-powerful attack, and then his Bankai wears off and he has to (possibly wait for a specific time and then) activate it again to use the attack again?

Exactly, I mean he's likely strong enough to defeat the Sternritter, even without Bankai now. At least he seemed to have that confidence, when leaving the Soul King Palace. So, I'm kinda hoping he'll save his Bankai, until he's face to face with Yhwach. Ichigo's past Bankai has been overexposed, as mentioned in an earlier post, so reinventing it could be Kubo's chance to wrap some mystery around it again.

Before challenging Aizen, after fake Karakura Town, Ichigo had to train in the Dangai, to learn Saigo no Getsuga Tensho, and since I doubt he'll ever use that technique again, then having a Bankai similar to Mugetsu sounds reasonable to me. I would rather see Ichigo use his Bankai that way, than having his past full-time speed boost.