The possibility of Zaniolo leaving As Roma is quite small, because Roma's relationship and situation makes him comfortable. But if Mourinho had another player they wanted to replace Zaniolo, Roma might let him go. But I haven't heard about it now, about there will be a replacement for Zaniolo next season. So I'm still pretty sure he's still going to stay.
Will Roma turn down a 50 million euro offer from Juventus? I've heard of it, but I see zaniolo still has a contract until the 2024 season with Roma
Zaniolo's name appeared as one of the players being targeted by Juventus and according to the news I read a deal might happen but Roma did not completely sell Zaniolo to Juventus but went on loan, while Roma are still holding on for 60 million euros and Juventus will not offer more than 50 million . Until now, the news of Zaniolo has not end because it is hindered by fee