I'm also a bit concerned about the characters. I mean, it kinda sucks having an all male cast. And their justification for that actually kind of dug them in a deeper hole. But if they do bring a stronger character development as a result, then good because that's something that's been sorely lacking for a while now.
I'm a bit concerned about the battle system, which has been described as FFXII (ew)/Kingdom Hearts/Type-0. I know they would never go back to full turn based battle at this point, but yeah, if it's just mashing buttons with little strategy then meh.
Insane to think this game has been 10 years in the making. the pressure to deliver must be through the roof. The fact that Tetsuya Nomura was involved in the early stages gives me hope for the story.