Lukaku has a contract until 2026, so it will not end so quickly, although I think that Chelsea would like to sell him, but they paid a lot of money for him and they will not give him to Napoli simply because they are the only club that wants to buy him. And from what Lukaku says, I can also understand that he is not against playing in Saudi Arabia, and Chelsea would be better off selling him to someone who has money. Although if they do not do this before 2026, then Lukaku will become a free agent, this cannot be allowed.
Every team are welcome for signing Lukaku in winter transfer window opening if reach Chelsea bid offer 38 million euro,
Chelsea head coach Enzo Maresca seems not including Lukaku as his game plan for next season have official announced for selling him to interested club want to sign Lukaku.
Not easy for selling Lukaku to Saudi Arabia club because he want keep stays with European teams in this season, has two years contract left I think Chelsea not opening an option for loaning him and try to sell Lukaku in winter transfer window if any club serious for signing him or put him in the bench until his contract over.