There is already precedent for variety of stowed item positions. If we don’t care about the draw/sheathing animation, it can be anywhere really.
For in game example, there are giant frypans (and maybe other DoH tools) that “stow” on the back, but magically resize and shift position when drawn. All DoH are drawn/stowed like PLD swords, regardless of where they actually stow.
I doubt we’ll see it, but just saying it wouldn’t be outside of what we’ve seen.