Action RPG = Ys.
Action "RPG" = Zelda
Action RPG =/= Final Fantasy

So I'm pretty sure while this is a numbered entry, it's not going to suddenly change the game series that dramatically. Even XIII wasn't action based since it had the auto-battle system that you couldn't 100% rely on, but it did take out most input a lot of the time.

Only the spin off games have been "Action" based, like Crystal Chronicles.