GotMetalBoy
Power User
Of course it will. It will also unleash the wrath of vocal opponents.
I think the old versions should be removed, so the Mk I/II can still get updates.
If people don't want their sounds to change then they have the choice to not update or go buy a XL+ and sell their Mk I/II to a new FAS user because a new user will want the latest update and won't care about previous versions.