Lukaku has made a strong contribution at Inter milan and he is very comfortable when playing with Inter milan and I think this will be Chelasa's opportunity to increase the transfer fee for Lukaku so that Inter have to think again whether to take Lukaku because this player is very valuable for Inter milan .
In my opinion Lukaku will still ask to return to Inter milan and Inter will also have a way to continue to be able to borrow and even make Lukaku permanent at Inter milan.
Chelsea are taking advantage of the Inter situation and Lukaku's keen desire to stay at Inter, so of course they expect high marks. But I can't say Chelsea are very realistic about a high price tag for Lukaku because his form cannot be expected to help Inter perform great for the next season. Chelsea should release him at an appropriate value, but certainly not as cheaply as Inter are currently hoping for.
Meanwhile, Inter have also added another centre-forward next season, namely Marcus Thuram. He arrived on a free transfer from Borussia Monchengladbach, but Inter appear to be dissatisfied with the number of strikers they have in their squad. Inter may have to be content with several well-known strikers such as Joaquín Correa, Lautaro Martinez and Marcus Thuram.