I got bored and decided to compile a list of playable characters in Project X Zone 1 who didn’t Return in Project X Zone 2, as well as what I’d do with some characters if they did return (denoted by bold):
- Alisa Bosconovitch
- Arthur
- Bahn
- Batsu
- BlackRose (Solo Unit)
- Bruno
- Toma & Cyrille
- Devilotte
- Frank West & Hsien-Ko (Frank, I’d pair with Chuck Greene)
- Haken & Kaguya
- Sänger Zonvolt (these three didn’t return because Moon Dwellers is a thing; if any of them did, I’d pair Sänger and Haken)
- Kurt, Riela & Imca (Selvaria Bles was a Rival Unit; if she returned, I’d make her a Rival Unit who joins you later as a Solo Unit)
- Mii & Kogoro (though they do get a passing mention in the story)
- Lady
- Soma & Lindow
- Neneko / Neito
- Rikiya
- Tron Bonne & Servbots
Pikachu:
on
The next five are changed to avoid overlapping themes.
Fox:
Young Link:
Rosalina:
Lucina:
Ice Climbers:
Sonic:
Borrowing this if it's okay with you (though I think Dedede makes more sense than Wario).
I'll do some of your routes if you don't mind.
Falco:
Mr. Game & Watch:
R.O.B.:
Toon Link:
Wolf:
Cloud:
Daisy:
Banjo-Kazooie:
Steve:
Sora: