As others have said, a more traditional fantasy setting. I actually like the sci-fi stuff, but it’s about time to go back to more of a fantasy setting. Maybe something other than European-style medieval, though.

Some women playable characters.

A good story.

An actual complete game upon release, rather than an almost finished game which is completed by DLC.

Seeing as gameplay, i.e full turn-based vs ATB vs real-time, seems to be a bit of a bone of contention between old and new fans, maybe please everyone by being able to choose which of the three you want at the beginning of the game and/or being able to switch between them. Difficult? Certainly. Impossible? I doubt it. And to forestall objections, no I have no idea how to implement such a system. I’m just the creative director in this scenario, the gameplay department and the code monkeys can work out the practicalities.

The big villain is a maniacal, genocidal moogle, and the final boss fight is the moogle in a giant mech suit shaped like a moogle.