Honestly, they should simply stick in adding more content to FFXIV, and improving some of the flaws in the game as well. Maintaining both MMO games, FFXI and FFXIV, is hard enough already, and perhaps is the main reason as to why we don't have genders for both races like the Viera and the Hrothgars, and that both aren't able to wear helmets and hairstyles you unlock.