When will Osimhen's contract with Napoli expire? IIRC it should be in 2026? So he has around 2 years left on his contract. I wonder if the plan for other teams is to let the contract run down and hire him on a free transfer, probably with lower wages too. 2 years later, he will be 28/29, not that young anymore, so a club probably has bigger leverage at the negotiation table. If he managed to prove that he can score a lot of goals regardless of the club he plays for, maybe he will still negotiate for a somewhat higher salary. If that does happen, I wonder if Napoli will regret their decision or not. CMIIW.
I don't know if he will stay in Napoli or not, but I am almost certain that he will not stay in Napoli because last year Napoli did not want him in the team despite the new manager. In such cases, the aim is to bring the player to the team thanks to the new manager, but Antonio Conte closed all the paths opened to him by not wanting him in the team last year. I am almost certain that he will make a transfer this year. I have read that Galatasaray has taken serious steps in this regard. If they are successful, it will be an important achievement for the club's history to bring him to the team. The team will incur a very high cost. They should manage this well in a way that does not harm the club.