BETA sign-up has been up since December, I think. I'm not signing up for it.
I'm not sure about it yet. I have difficulties understanding how they'll move away from grinding, even if there's "no levels." Square Enix is Japanese, after all. I have my eyes set on a different MMO at the moment, which also has no levels. It's mainly PvP and RP driven, and while there is PvE, it's pretty much a niche because people don't have a reason to stay online 24/7.