Why make things more messy just because it's unique? The game still needs a dedicated healers (WHM), tanks (WAR) and nukers( BLM). Their purpose in battle is going to be the same no matter how you dice it but you still want to hold onto misleading class names? A nuker that can't heal and has weak physical attacks is still a BLM no matter what you call it in a FF game. If you want to name your BLM something else then please do so on Besaid in your RP group but all the rest of us should be able to tell you're a BLM just by looking at your gear and invite you to groups accordingly. (oh the last bit doesn't make any sense if you think of XI but anyway I hope BLMs are going to be more useful than in that game)