>>717399969
>unless Square Enix as a whole is off the table.
Squeenix has literally zero rights to Sora. According to an interview the only reason it took so long for Sora to get in was because Nomura was being autistic about whether or not he should try and make the Smash appearance Canon.
(Sauce on picrel:
https://www.khinsider.com/news/Gameinformer-Interviews-Tetsuya-Nomura-about-Kingdom-Hearts-4-and-Missing-Link-19452 )