Regarding Zidane, he is very suitable to be Potter successor. There is no need to doubt Zidane quality, he has already made history with Real Madrid.
Zidane is ready to come back next season, that's what I remember from the news I read a few days ago. His name is also linked again with Real Madrid. This is still doubtful for me, because Ancelotti still has a contract with Madrid until 2024. Apart from Zidane, there are rumors that Mourinho is also become a target for Madrid. If Zidane returns to Madrid, it's not surprising, but if he going to Chelsea he will make new history because this will be the first time for him to manage EPL clubs. Chelsea maybe need a coach like him, but sometimes a coach is not fit with any clubs at all. However, this is really become interesting news to follow.
I'm surprised Zidane still isn't keen on facing a big club in the Premier League, and if it's Chelsea he's in charge, we can at least see a good game. Despite Zidane's disinterest, I think he prefers to remain silent. Ancelotti is still comfortable at Real Madrid and his contract is still long. Graham Potter is gone for us to mention, maybe the coach option Todd Boehly wants is someone he can control. It's not like when Tuchel was there but seeing Todd Boehly's selection of Potter should be a lesson that the results are always abysmal.