Interestingly, it is not yet clear what changes Man City will make... Apart from the fact that midfielder Phillips is coming to them from Leeds and that Jesus is moving to Arsenal... I understand that no top players will appear at the club by the new season, and the main players will also remain with the team unchanged...
There won't be many changes that Manchester City will make, because they already have competent players in all positions. Maybe what they need is a player who will be a back-up if their main player can't be fielded. They will be very busy next season, so the probability of a major player being absent is very high, they have to prepare from now on.