User blog comment:Xilinoc/Ch. 588 - The Headless Star 7/@comment-6904925-20140709130507/@comment-5398287-20140711003040

Here's the problem with that: Yhwach made especially sure that there was nothing left of Yamamoto's body to be resurrected by Orihime, Chojiro's body was burned to ashes and likely scattered, and no one knows where Unohana's body even is.