All things considered, it sounds like a pretty safe way of going about things. Adopt a cute, inviting visual style with simplified battles and toss in some vaguely Pokemon-esque monster hunting, and it seems like a good way to try and get the young'uns interested in the series.
With Jump Festa 2016 underway, the company has now released a lengthy trailer for the game. So far it looks pretty good in terms of environment and character designs. Now it's a matter of speculating what the full roster of characters and monsters will be. Square-Enix tends to be quite thorough with games that span the entire Final Fantasy series, so I expect quite a lot of popular choices will make the cut as well as some more unexpected ones.
With that, does it make me a bad person to be looking forward to this more than Final Fantasy XV or the Final Fantasy VII remake?