User blog comment:Xilinoc/Ch. 553 - Frozen Cross/@comment-5695542-20131017021841/@comment-5398287-20131017215744

I was referring more to how the manifestation of Ichigo's Quincy powers took on a different form when he was in his Bankai and that hasn't really been explained yet, seeing as how it's never been hinted that Zanpakuto spirits change form when their owner is in Bankai and why this would occur to a being who isn't even Ichigo's Zanpakuto spirit.