There weren't any major changes at Man City last season, but who knows what happened to prevent them from defending their title. Guardiola won't let that happen again for the 2025/26 season. So, even though they lost the title last season, it doesn't mean they're weak. With several new players coming in, I think Man City has a chance to win the title again.
Pep will certainly strive to bring Manchester City back to the title next season. If City fails again, Pep's reputation will suffer somewhat. Manchester City does appear to have made quite thorough preparations in the current transfer market. However, I still think De Bruyne's departure is quite unfortunate. I don't think the player brought in to replace him will necessarily be on par with De Bruyne. So, Manchester City could start to lose their strength in one area. But I think my concerns are overblown. Pep certainly knows what he's building at the club.
It's a 50-50 chance for City to win the title next season. I don't see their squad as strong as those days during the reign. Rodri and De Bruyne is not part of the squad currently, and their contributions added a significant value to their performance. Pep has to try his best to strengthen his men in order for them to be as strong as they were two seasons ago if they want to win the title next season.