Doubt we see a rpg with a character creator like this but naughty god , kojima productions will match this easy.
Why not. This is part of Unreal so any RPG that uses the engine will now have this character creator. Actually this creator allows much smaller studios to have pretty much the same advance character creator that the big studios have and its require no developer for creation. It also scales all the way down to mobile so Developers can pick their target platform and go to town or scale back for moderate hardware.