Ancelotti would never want to sign for Manchester United or any other team from now on. Unless Real Madrid sacks him of course which doesn't seem likely to me. Because he has already stated that he wants to retire at Real Madrid. 
Here is the source: https://x.com/FabrizioRomano/status/1795486396427178049
When it comes to Guardiola, we don't know when he will leave Manchester City for now. He has closed the door for Barcelona by a recent statement he made but maybe he might be keen on working with another big team. Even if Manchester United targets him to sign one day, they had better be prepared to build the whole squad according to his system.
Coming back to ten Hag, this might be his last season depending on team performance. I would like him to be successful though as I don't think he is a bad manager actually.
Ancelotti has given his best for Real Madrid and he has built this team with a fairly solid framework for the long term so I also think that he will not be likely to be fired from Real Madrid in the near future.Here is the source: https://x.com/FabrizioRomano/status/1795486396427178049
When it comes to Guardiola, we don't know when he will leave Manchester City for now. He has closed the door for Barcelona by a recent statement he made but maybe he might be keen on working with another big team. Even if Manchester United targets him to sign one day, they had better be prepared to build the whole squad according to his system.
Coming back to ten Hag, this might be his last season depending on team performance. I would like him to be successful though as I don't think he is a bad manager actually.
Like before at Barcelo, Guardiola would leave when he had everything to get a new challenge at another team, so it is possible that that will also happen now and there are even rumors circulating about it now.
We still don't know whether to go to Manchester United, but I'm sure that soon Guardiola will leave Manchester City.
If Ten Hag is successful, this will not be his last season, Man United management will definitely keep him if he is successful, but if not, it is not impossible that he will leave midway.