That makes sense. Mbappé is going to get paid really well by PSG if he sticks with them. They aren't necessarily facing the money issues that Real Madrid have. Plus, PSG are getting better in Europe, so it'd be easier for them to keep players.
They'll sign one of the two and then sign Alaba on a free along with either Pau Torres or Kounde by giving Villareal/Sevilla some of their fringe players.Hopefully they go for Mbappe