Pretty sure FFX did the same thing as well!
I really hope the world is fleshed out, and that there will be sidequests, things to do other than "whoa, big monster, kill it!". I'm worried that it will be all about "big scary monsters and summons" and forget about elements that make FF great. The small scale, character interactions, little easter eggs, side-quests. I worry for those elements.
I'm not so worried about the music, because Final Fantasies generally have a stellar soundtrack, and Somnus from this game is very good.