Yeah, magus has it right. The school has twelve characters yet they all look like 2 characters (generic jpop-star looking guy, generic movie-star looking female). Oh, sure they throw on some glasses or change the hair style a bit, but everything is so samey. The only interesting characters are the elder characters but a lot of them just seem generic designs as well. Pipe girl has been in like every anime ever,

Then you have all the voice actors being the usual SE crew. Zack is Jack, Cloud is Ninja guy, Xehanort is one of the elder guys, it's kind of lame to re-use all your actors from your other games for 90% of the cast. The only interesting bit is having the guy from every Shaft anime ever + Durararara be the good guy turned antagonist school guy.
That's the other thing, the trailer basically gives away the story and the story is SO GENERIC MELODRAMA. OH NOES MY CHOCOBO RIDING BROTHER WAS KILLED, I MUST BE FILLED WITH HATE AND AVENGE HIM (SASUKEEEEE), no don't do that! Revenge won't bring him back! All we can do is honor the dead and fight with peace! blah blah blah; it's just so generic looking.
And the gameplay doesn't look interesting at all.
I like the airships, but otherwise the design style of this just seems lacking. Seems like a made by committee game to build on the ever popular "school crew" rpg that rose up thanks to Persona 3's success, just with jpop characters.
But at least it has a Bump of Chicken song for the theme. That's one thing going for it.