Board Thread:Naruto Discussions/@comment-11891028-20170719213849/@comment-734582-20170721143448

Ravenlot 27 wrote: I mean, when Edo Tensei is cancelled, only this soul is seen leaving the body and departing to the Pure Land, there's no reason to believe that the sacrfice's soul wouldn't accompany the reanimation's soul if it was still there, in the same body. Only with Edo Tensei do we specifically see the soul leaving the body. In every other case, whenever there's a regular death, no soul is seen leaving.

So regardless of when the Edo Tensei's host dies, we won't see it.