If Madrid are prepared to spunk nearly 200m on a dude with a year left n his contract, and PSG come to us with something similar for a 30 year old, then I have no idea how the club would react to that offer. We're one of the 4 decent/good/great teams in this league, so CL qualification is pretty much sorted by default.
Do I think it will happen? No.
Is it possible that under the right circumstances that it could? Absolutely.