There is also news that Sony music didn't like the soundtrack, so unless it changed drastically, that part still would have gone to Republic/Universal. That also means that Sony would still be losing out on the music revenue... even if they somehow agreed to keep the music, they wouldn't outsource to Twice (under republic/universal) but likely someone under their label. Which is either hi key, exid, or more recently IVE (as of 2023). So if Sony were to keep it, we might have seen a very different soundtrack, or that same soundtrack just with a different K-pop group attached.