Unless they specifically promised that it would never leave China, I still don't see a problem. ¯\_(ツ)_/¯ From what I read it seems the only reason it was exclusive to begin is that Shanda Games requested that specific style, and Yoshida stated that Chinese players don't care about lore/realism (after implementing the Yokai event). No one cared that the butler/maid equipment made it over there.