Lukaku seems to be moving to Juventus almost definitively. He turned down Milan because of their poor performance in the Champions League when he was left out of the Manchester City game. In general, he is a strange guy, after all, given the fact that his career is not in the best condition could go to the Saudi league and continue his career in peace, because while scoring Lukaku has not yet learned and just in the Saudi league could show his potential.
no, I'm not sure if Lukaku should go to Juventus whereas he feels that Inter Milan is like his own home and feels comfortable with every player who was able to make a good contribution last season all the way to the champions league. maybe everyone's assessment will be different but I don't agree if you say Lukaku's performance in the champions league is not very good because Inter Milan was able to reach the champions league final because of the contribution from Lukaku and if Inter were without Lukaku, their performance would definitely decrease slightly.
I am sure that Inter Milan will continue to pressure the Chelsea management to accept his offer even if they have to increase the amount offered.