No way he will be 100m, not even City will pay that for a defensive minded CM who hunt the ball.
I think he will go for 80m + add ons tops. It's still a lot of money, but for a dependable 7/10, occasional 8/10 player for the next 6 years+ it might be worth it the same way Harry Maguire was worth the 80m after all.
Better than spend a couple of 40m's on players we will have to replace soon like Ugarte.
Still hope we have scouts to recognize soem CM with a good value out there. But think we will do the same as we did with Cunha or Mbeumo, buy the best in the league with potential. Easily the msot pragmatic way for rebuilt, costly, but cant afford to have another poor season due to CM shortage.. and also back in the champions league and all cups.