This is my guess and it is based on the subtle wording that Guardiola gives in interviews when asked about the future.
As for dominance in the Premier League, for us ordinary fans it looks like a cool achievement, but the sheikhs are ambitious guys. They created literally the most expensive club in the world but have not been able to get the main trophy for so many years. Do you really think that their patience is endless?
It seems to me that they do not care about statuses, reputation, etc. the most important thing is the result, at the moment it is not there and if it is not after the purchase of Haaland, then Guardiola will be fired.
Speculation about the future of Guardianola in Man City seems to arise because of Man City's draw with Copenhagen in the UCL and Man City's defeat against Liverpool. I personally see that this is a normal thing because so far Man City's achievements at UCL are still good. we have to give guardianola another chance to prove himself capable of giving the UCL trophy to man city. Guardiola will have a long future at man city.
A lot of times we have read similar speculations and in the end Guardiola only ends up extending his contract at the club so I believe this also is one of those speculations to gain audience. Guardiola is doing so well at the club and still feeling positive of achieving his most desired price with Manchester City. Probably if he is able to achieve this he would consider seeking a different challenge elsewhere but in the main time he is still at the club.