Looks like FFXIV has announced a North American release date of September 22, 2010. There will also be a collector's edition, which along with some fluff items, includes eight-day early access. The subscription start $12.99 per month for one character slot and an additional $3 for each extra character.
With so many in an MMO slump and release of the other big name MMO's not yet announced, I would expect they'd at least have a decent number of box sales for the NA version. But unless they change the awful keyboard controls between now and then, I wouldn't expect it to be widely accepted here. Not sure if anyone caught that painful combat demo at E3, but the player was obviously having trouble moving. But there's still a couple months yet. If I don't have to go out and buy a controller in order to play comfortably, I'll definitely be trying it out.