My impressions from PAX: in-game looks pretty. New music also sounds pretty good. Same voice actors as the original game being used. Love the new interface.
But the CG movies seem to suck. I saw jaggies all over the place. I don't think they remade any if the CG. Also, it doesn't look like they will update the lips too to match the voices.
The Square Enix rep also said that the game is most likely coming out in 2014 in NA and they still don't have a release date.
A poster on the GameFAQs board also claims that the representative admitted that the Vita versions are still getting physical releases.
Potentially bad news, all: I just talked to a Square Enix rep here at PAX Prime about FF X/X-2 HD's release date and he flat out said it's not coming until 2014, "unless I'm REALLY lucky." That certainly isn't official confirmation of a delay, but it's looking more and more likely. I'd say the writing's on the wall at this point. :(
He said February 2014 is looking most likely at this point. If that happens, they're screwing themselves on Lightning Returns...
I wouldn't take these as absolute confirmations but figured some would want to know.