Sporting wise Osimhen will still be at Napoli next season because currently aside from haaland and mbappe right now, I don't think there's another striker that can guarantee Antonio conte 20+ goals in Seria A for the upcoming season. So bringing another striker for lesser amount may seem like a gamble. But business wise if a tempting offer comes, the president can still ship him out and get a lesser striker for a lesser amount. But if it's down to Conte Osimhen will be at Napoli next season cos his teams are always built around his number nine(9).
The arrival of the new coach certainly makes it possible for us to see a reshuffle occur in the squad a team, including the exclusion of several players from the main squad next season, so far we know that Conte is an coach experienced, firm and also selective in choosing players who will enter his main line-up when coaching, even he does not hesitate to throw away players who are not in accordance with his coaching method although the player have performing well when playing with the previous coach, next season Conte will coaching Napoli and Osimhen is one of Napoli mainstay players so far with his goal contribution, but I think Osimhen position at Napoli is very insecure and not received guarantees from Conte to fill Napoli main lineup next season.
Previously, Conte had emphasized that he wanted to work with Lukaku again, so it indicates that if Conte have a player who he believes can be a Napoli striker next season rather than Osimhen, so that it is indeed currently making Osimhen position at Napoli very difficult, besides that it is reported that the owner of Napoli is not reluctant to sell Osimhen if there is indeed a good offer coming at this time, Osimhen does have a big contribution to Napoli in last seasons but I think his future is still 50/50 at the moment at Napoli.