That depends on how progress between lukaku and chelsea. I just read from gazetta if wants to sell him as soon as possible. Chelsea has been even decreasing lukaku's price so much. He is not priced almost a half from previous price.
Chelsea are a rich club but they must obey financial rules from UEFA. They are already in a watch list of UEFA and they will have to try to balance between transfer values from bought and sold players. With players who are receiving high salary and Chelsea don't have plan to use, they will try their best to sell those players and get some sort of money back. Lukaku is in their sale list, no doubt about it.
Chelsea are undoubtedly a rich team, but giving away talent is never a good thing. Of course if he has to raise cash it's another matter, if it were me I wouldn't easily give up a player like Lukaku who can make the difference in the opponents!
What's unfortunate is that they only looked at Lukaku's poor performance in the Champions League final, so Lukaku was treated like that. Meanwhile, in reality, Lukaku can of course still play well because after all, every player will certainly get that kind of experience. But yes, because Lukaku's status is a loan player and Chelsea is a club that has Lukaku's contract, but at this moment Chelsea don't seem to want to get Lukaku back in their squad. Also at the same time, it seems that Inter are also looking at it from the same side, so of course Lukaku is a player who is certainly on the list of players to be sold. But unfortunately, it seems that there are still no other big clubs that have an interest in signing Lukaku.