I think PSG are willing to sell Kylian Mbappe this summer because according to news, the club already issued an ultimatum to Mbappe to decide his future whether he wants to leave this summer or accept a new contract. I see this situation as a huge risk on club’s side, they could end up losing Mbappe for free next season if they are not careful. Real Madrid are already waiting patiently and plotting a quick hijack immediately a decision is made by the player to leave PSG.
PSG still waiting an answer from Mbappe about extend contract or not before taking final decision for selling him in this transfer window, Mbappe's future remains unclear for now because he not answer yet about his contract extend or not. I don't think good ideas from PSG looking not cooperative from Mbappe and better put him in the name list for selling. Luis Henrique has much time looking for replacement for Mbappe actually with much transfer fees if sell him.
PSG have announced give two weeks later waiting an answer from Mbappe, its looks have been one week but Mbappe still not confirming about his future will extend contract expiry next season or not.