Originally Posted by
Ouch!
Online features could mean any number of things, so many in fact, I'm not even going to jump into detailed speculation. I doubt it will be a full-blown MMO, and since it has yet to be determined, I can't imagine it'll be anything particularly complex; it'll probably be bonus things that aren't really anything special.
Square Enix is working on a new MMORPG already. They have said that it will occur in a previously established world. They have not yet confirmed what world it is, but they have said that it's not the same world as FFXI. Actually, it's not even confirmed that the world is from a Final Fantasy game. I'm willing to bet on Ivalice, though, just because it would be the easiest world to do without having to worry about too many plot conflicts as a lot of Ivalice's history is left very open-ended.