I concur to your statement but I think he'll want to stay for a season or two more before leaving England since he's already had a Treble with them and winning about 5 Premier league trophies since he arrived in 2016 in Manchester City, I believe he's going to depend the trophy this season and try to prove himself as the greatest coach in England after Sir Alex Ferguson of Manchester United, he's trimed his squads by letting go of some world class players that made it possible for them to be crowned the UEFA Champions League Winner so therefore I thinking defending it is not going to come easy though they'll have a great performance and could participate in another final again.
Anyways Pep is a great coach and is not scared of facing new challenges so there's a tendency that may seize to be the Manchester City coach after this season, I feel he'll prefer moving to France than Italy or Germany again, he has the winning, mentality, tactics and ability to scout and transform veteran players into world class so he'll want to join a club that would listen to his demands and back him up with funds like Manchester City did and PSG would be the rightful club capable of doing that, they'll be willing to get him at the snap of a finger as far a he declares his intentions to leave City, because he's a coach capable of giving them an opportunity of lifting the champions league trophy which they are desperately in need of.
Pep Guardiola will definitely stay with Manchester City until his contract expires. To talk about his tactics, of course the team handled by Pep Guardiola can turn into a stronger team from all aspects, because he was able to make big changes for Manchester City since he coached Manchester City. For now Pep Guardiola is still quite comfortable with Manchester City and he even wants to bring Manchester City to win lots of trophies for next season.
Looking at the transfer market in the Manchester City team of course we have seen Many star players who left in this transfer window, such as Mahrez and Gundogan. So that Pep Guardiola will be active enough to bring in other players in this transfer market to be able to close the hole he left behind. Well, it seems that Mahrez will officially leave in this transfer window after he agreed to an offer to join the Al Ahli team. I think Manchester City will sign some young players in this transfer window to be able to balance their strengths next season. Manchester city will face Bayern Munich in a friendly match on the 26th. We will see this match as a big one to take a look at their strength for next season.