Guardiola future at Manchester City is still very much a mystery at the moment, because with the rest of the contract almost up, he has not shown any sign of a contract extension, even in several interviews conducted by the media, Guardiola seems to be avoiding questions about his future at the moment, with no certainty about Guardiola at the moment, he is instead associated with the Brazilian national team, But I think Guardiola probably won't think about it because there are still two big leagues (Ligue 1 and Serie A) which he no yet conquered in his coaching career, but if he chooses to coach Brazil of course that its will be very interesting, because all this time Guardiola is known for his very attacking game philosophy with high ball possession, so it fits perfectly with Brazil playing style which also prioritises creativity and fast attacks so far.
It might still happen but when it comes to the Brazilian national team as long as it hasn't been confirmed for Pep I will continue to wait for that before commenting.
We had their prank for Ancelotti who was even said to be the Brazil coach who ended up extending his contract at Madrid until 2026 and it could happen for Pep too so we can't be too sure about this.
On the other hand, for Pep indeed if in the end he leaves Manchester City then the chance to be in the national team is indeed very possible and it could be the right decision. He has experienced 3 major competitions in La Liga, Bundesliga and EPL so if he starts trying to approach the national team to get more achievements, this should still make sense to do, it's just that the uncertainty now for Pep is still gray even though Manchester City will not release this coach but all decisions are in Pep's hands in the end.