The next surprise is likely to be a bit controversial, there have been rumors Pep Guardiola will leave the club after successfully bring Manchester City to the top of the Premier League and ucl, yes although I hope that never happens. But Pep's past at Barcelona became a reference where he left Barca when the team was experience great success because it win various competitions.
I have also read something like that about Guardiola thinking about leaving City in upcoming years but honestly I don't believe in it. Guardiola has a great team and top class facilities that any manager wish for and he has everything there. I don't think of any reason other than becoming of
sick of winning but I feel that since they have won their first CL, Guardiola will push for more and I feel he will stay at City for more years. People like Guardiola go on in search for challenges and I don't think there is much of challenges left to explore after LaLiga, Bundesliga and PL now.
Guardiola will end up leaving Manchester City by the end of his contract or a couple of years later or if he sees that managing a national team might be interesting for him, if the offer was interesting eventually