Doesn't sound like it. Idol was a weird exception because the leave/revenue sharing was only available if they took Brave up on it at the time of buyout. Kai Saikota explicitly said she wasn't even offered a buyback option. Nikki Rei managed to walk with her IP, but she was part of Idol gen1 and could have had some weird contract that Brave couldn't do anything about.

Maeve Morveren is very clear that she's buying her IP, so we can assume the same is true for everyone else in her position.

TLDR;

Thank you everyone I love you all (especially Cera, my own, and senpais)

I will be purchasing my IP. I will be gone for 3 months due to heavy workload and family responsibilities.

https://x.com/MaeveMorveren/status/1994182954541830363