Ichirou didn't have any claims beyond his custom summons so far as I was aware. As I said if you lose those claims, Edo and Hiraishin and the various things you got from Manji then that's fine with me, I have no issue.
Since Manji died in Iwa and I merely allowed you to Edo Tensei him, and you're now voiding that, I'm going to Edo Tensei him and claim what I wanted from him in the first place, the Kusanagi. Everything else I already have obviously since it's just jutsu he got from me.
I don't actually want the zombie since I don't really ever have a reason to use Edo Tensei so I will release it after I get the sword back. He'll be dead in all timelines, I'll just be claiming the Kusanagi and his eyes, and the world can go, relatively, back to normal.