Yes, at some point Pep Guardiola will leave, because he always wants to look for new challenges, he pledged to stay at the Manchester club next season. However, this will likely be Pep Guardiola's last season with Man City. On Man City's side, there also needs to be moves to prepare for Pep Guardiola's departure. The Etihad Stadium team's leadership may pay attention to a candidate to replace the Spanish strategist, for example. like Xabi Alonso.
But Guardiola will now start preparing his team for a new season. The aim is to win a fifth consecutive Premier League title, while also trying to win a second Champions League trophy.
Next season Pep Guardiola enters his last season with Manchester City, so far we have not seen any potential from Guardiola to extend his contract with Manchester City, Guardiola has brought glory to three big teams in three different leagues today, besides that he has also created a new record as a coach who was able to win 4 trophies in a row in the Premier League and has the opportunity to set a new record again next season with Manchester City As a coach who has won 5 trophies in a row, I quite agree with you, because I think at the moment there is nothing more that Guardiola really needs to prove in the Premier League so it is very likely that he will leave Manchester City and look for a new adventure in another league.
Guardiola is not the type of coach who will coach differently team in the same league, so I think it is very likely that Guardiola will try to repeat his glory in the team in Ligue 1 and Serie A, so that will make him the most successful coach in the big 5 European leagues, out of some of the coaches who are active today, Of course, Arteta may have the potential to replace Guardiola at Manchester City later, especially now Arteta's situation is no different from Guardiola who does have one more season left on his contract and has not renewed his contract.