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I've only just read the patch notes for 2.0 here - http://forum.square-enix.com/ffxiv/threads/11012 (I know this is old, but new to me, I haven't followed this game since I was sorely dissapointed with its release.)
If 2.0 is implemented completely without dissapointment then it has the potential to make Final Fantasy XIV the one of, if not the, best MMO of 2012/2013.
I'm trying not to get my hopes up too much, but it's hard to not have high hopes when everything they have done to the game since it's release has only been good, dragging the game from a pile of crap to a playable ( yet still bad) MMO.
If they continue to do what they've been doing recently then they could be the first ever MMO company to save an MMO and bring it back to the masses (I'm sure the PS3 version will also help in that respect.)
It's too hard for me not to get excited about the upcoming features, but I still won't play again until all of 2.0 has been added to the game.