Personally as a former FFXI player I am lookng forward to this.
I don't expect it to put a dent in WoW's market share but that doesn't concern me either, yet I wouldn't underestimate the potential of any game with those two famous words on the box, especially as there is still a massive market out there of gamers yet to play an mmo, and no other rpg franchise could hope have the same draw as FF. I am sure that this game will be profitable for SE just like FFXI has been over its many years, and as the 1UP article says, FFXI is probably one of gaming best kept secrets now, it is actually really good (doesn't forgive years of shiteness however).
The Official website is here, which is pretty nice and has the TGS 2009 trailer that I don't think EG even bothered posting (I might be wrong).
Also, this is pretty much the latest news on classes in the game.
This is a pretty recent preview also.