While the original 2010 Final Fantasy XIV was considered a disappointment by many, FFXIV: A Realm Reborn may well be a different beast entirely. In an interview, the game director Naoki Yoshida said this:

We took our fanbase for granted. We lacked the knowledge of other titles. We didn’t have the passion.

So at the very least, the game will have some changes from the original. It's hard to say exactly what reviews and gameplay will be like, but after the prerelease in August 2012, it won Destructoid's 'Gamescom community choice award' for being a "far cry from the game that disappointed so many."