I reject this artwork. My head canon is better. Bah. Bah I say.
I mean, some of them have been pretty clearly redesigned. Fahna wasn't nearly that much of an exhibitionist in the original, and while her legs are a bit hard to see, it doesn't look like they had those sandals. Also, Luka... well, didn't have a walk cycle
*, but she didn't seem to be
barefoot and actually had a full dress rather than a window frame for her legs.
Not sure how much I dig Primm or Popoi's voices in JP, either, I always imagined Primm sounding a little lower and rather more obviously willful (think, like, Kana Ueda doing Rin Tohsaka, that's like how I imagine Primm) and Popoi isn't nearly ambiguous enough - Popoi should sound more like Morgana from P5 than anything.
I'll be curious to see who's doing the EN voices.
* Edit: ah wait. she does, it's just barely ever used in the game itself.
Edit 2: Damn but those animations during the cut-ins are simple and the UI is just hilariously low-effort. Well, I guess you can only expect so much from repurposed mobage assets.