I actually think this idea has some promise, many many years down the road after FFXIV has gone through its whole lifespan as an MMO, so to speak. Do a remake in the same vein as FFVII, where for all intents and purposes it's basically a new game but it retells the main story in a new way with fresh game mechanics and overhauled combat system. FFXIV has such an awesome world and story that deserves to be preserved and replayed in future generations, but you can't go back and play an ancient MMO in the same way as you can pick up and play the other past entries in the Final Fantasy series.