To be honest, I haven't received any official news about the players they will recruit next season. Juventus and AC Milan are indeed tough competitors for Inter Milan for next season. I can say that this season Juventus and AC Milan cannot put pressure on Inter Milan who dominate Serie A. But if they are active in the transfer market this season I think they will really be a tough competitor for Inter Milan.
I don't know how AS Roma and Napoli will fare next season. As Roma will be better next season because I see De Rossi is a great coach. Napoli performed very badly this season. I'm not sure they will be contenders for the Serie A title next season.
I think that Napoli has a chance with Conte, it looks like he wants to keep all the key players and bring in some of the other teams, so there is optimism about Napoli, but for Juventus I can’t say the same, I’m not even sure how good Motta is for Juventus. I also don’t see them actively working on the transfer market, so I think they will fighting for a place in the Champions League, but nothing more. And I agree that it will be difficult to compete with Inter, they have retained the team and can repeat their success again.
If referring to Conte's big name then of course there will be a new hope for Napoli now because after all Conte even with his temper that is sometimes difficult to control but he is one of the coaches who is indeed very good and we cannot underestimate how his concoction in managing a club.
But on the other hand this also depends on the players in the end whether they can indeed make a difference and realize Conte's wishes or not because we also cannot rule out that Conte is not reluctant to leave even though his contract has only been running for a short time because he sees some great coaches who are training at this time, Conte is one of the coaches who is not really at home with a long contract because in his current coaching record he has never been in one club for a long time because he always leaves on an existing contract so that for Napoli it also does not rule out such a possibility which makes this 50/50 whether in the end Conte can give his best or leave quickly because of the lack of fit between Napoli's playing style and the scheme he has.
We hope that the competition for the Scudetto next season will be fierce, even though we know Inter will continue to dominate, but at least Simone Inzaghi squad will no longer lead the standings alone without experiencing significant pressure. Milan, Juventus and Napoli are three teams that are considered to be Inter's closest competitors, but personally I am a little worried about the abilities of these three teams, because they are starting their journey next season with a new manager. Of course they need time to adapt, so the change of manager might also be an opportunity for Simone Inzaghi to retain the Scudetto.
On the other hand, Atalanta, Bologna and Roma could also make a surprise, they also have the opportunity to enliven the competition, thus creating a more competitive Serie A atmosphere. Conte is the manager with the heaviest burden, because he has to lift the performance of Napoli ranked 10th to the top four in the standings. Conte reputation as a quality manager has been proven, but everything also depends on the depth of the squad he has. If Osimhen and Kvaratskhelia leave, Conte will have difficulty managing Napoli.