Oh sure...Like they haven't done an all female cast in final fantasy *cough cough X-2 >.>* I welcome that change and don't find it bad. Your supposed to be paying attention to the story anyways so...
Not to mention that real time combat system wasn't even marked bag. Keep in mind Jedi, They remade an online game, FFXIV, and apologized in rather classy matter, then reworked it and made It much better to where it's one of the most played mmo's currently to date. I have good trust in square enix at this point that the upcoming titles won't be bad. Another problem is that i don't know about you, but jrpgs are like a plague over in japan as much as first person shooters are over here, they're trying a new approach while trying to be innovative and for that I commend them for. Not enough companies make great risk to make something better with an already good franchise.
Undertale is great because it's atmosphere and theme try to remind you of a good childhood. It supposedly does that excellently from what i observed (still need to play it).
Don't be mad over something till you play it or observe it well enough after release, otherwise you are feeding and unhealthy speculation train.