It will be interesting to see if FFXIV actually kills this game. For years we've heard "You can't kill PS2 support! Everyone plays on PS2!". Or "I can't afford a computer to play FFXI on!" or "I shouldn't have to buy a computer to play FFXI!".
Seems to me that if any of those people were telling the truth (I personally think they are full of crap) then the game should be just fine because it has a captive audience. We'll see...