Sakura in future Chuang/YWY girl season?

maybe but sakura doesn't have the singing or dancing or rapping abilities to mentor others though...(with all due respect)

but maybe as a host or the mc like role?

like Esther is doing now and what what Kun did for YWY2

I don't think so. She'll probably focus on getting her solo career going in Japan once izone disbands

She's still on hiatus as a member of akb right? Even if she's planning to quit she still has to go back and do the whole graduation stuff. There's no way aks/akb lets a kami 7 member just quit with all the money on the table a graduation single/concert brings.

I think is possible. Japanese model Mitsuki "Koki" Kimura is featured on Chuang 2021. Koki does know some Chinese and is fluent in English though. (She wrote English lyrics for the theme song!)