I known it's too soon but what do you expect the cap will be for this series?
According to the Viz translation, Warrior God used Pandora's Box to save all the stars. So, maybe Star level?
From what know, Samurais already have an impressive tier of regen being able to regrow arms in seconds and can breathe in space and what not. And that there is threat to the Universe.
What do you think the EOS will be like?