This is a jRPG by FuRyu, which is a company with some ex-Square people in it.
Also in the trailer:
Background Design: Masayo Asano (Lead Field Designer on Final Fantasy X)
Monster Design: Yuichiro Kojima (texturing on Final Fantasy Crystal Chronicles series)
Character Design: Ryo Hirao (Battle Motion on Final Fantasy XII)
Looks like Bravely Default, the loading elements on the map look a little silly and so was the English in the trailer, but otherwise it might be worth to follow.
XI Wiki




