I wanted to look if there were still any rumours linking Mbappe with other teams and saw this on Transfermarkt:
Source: https://www.transfermarkt.com/kylian-mbappe/geruechte/spieler/342229Real Madrid aren't even in this list which made me really surprised. I mean how?
Real Madrid have been the most linked team for him for a long time as you also know. Let's say Mbappe stated his wishing to leave PSG this summer. Then I don't think Arsenal would be his first choice. I don't think Bayern Munich are really interested in him too. I think it is the weakest link.
I expect Liverpool or Real Madrid to be Mbappe's next team if he decides to leave. Liverpool will need to find a replacement for Salah if he leaves in the summer.
Real Madrid have already been thinking of this signing for a long while but they must have waited for the right time.
Arsenal, Liverpool and Bayern Munich don't have big budget to buy Mbappe or to pay him very high salary he wants. Arsenal don't have any chance to get Mbappe because if they are not better, more competitive than PSG in Champions League. Not yet about their lack of budget, they can not satisfy Mbappe's desire to win Champions League.
Liverpool will lose Klopp in the summer and it might trigger big changes in their club. Mbappe will not want to join a club with uncertain future like this.
Bayern Munich already bought Harry Kane last summer and they will not be ready to spend huge money for Mbappe. Even they have not bought Kane, they would have not sign with Mbappe because it will break their salary ceiling.
Only two potential destinations for Mbappe, Real Madrid and Manchester City and look at Manchester City with Haaland there, Mbappe will not want to join a club that has his biggest individual competitor. Sum up, it seems Mbappe will either stay in PSG or move to Real Madrid.