For now though this is still possible but I think this is still too far.
We know Chelsea's condition is currently in a very apprehensive state with so many players piling up and not being very useful in the squad.
Kovavic is actually a pretty good player with the determination he has, it's just that when Potter and Lampard were around he barely got a chance to play.
On the other hand, for Havertz, if I'm not mistaken, in a number of games this season, he actually has an important role for Chelsea when they have a game they can't win. He can always make changes, whether it's for a winning goal or a draw.
In fact, I still feel that releasing them too hastily in the transfer this time is a bit detrimental and profitable for Manchester City and Arsenal.

At the moment there is news that Mount has also officially become the property of Manchester United and that means that about 4 of their midfielders have left now after Kante, Kovavic, Havertz and Mount.