There will not be any increase in his value in terms of money. However, He may feel psychologically that he is that good and that he can be a regular at Barca, or Man city/Bayern chase him even more. This hat-trick can only be bad for united I think in terms of signing him. I can only feel like this is going to be another Hazard or Lucas situation-however what is in our side is we do not have to be in a bidding war (which we mostly loose)