Mbappe's contract discussions sure have PSG on edge. If he moves to Real Madrid, PSG could take a financial hit. But, he's signaled he's staying with PSG next season, even though what's next is up in the air. That gives PSG some wiggle room and might make Madrid think twice. Madrid got Joselu and Diaz back, but they're no substitute for Mbappe. Fans are all over this juicy football drama
I would actually see it the other way around when Mbappe stayed for another year. He will be a free agent as his contract expires next season and he already said that he will not activate the option for another year, which can only be done by him. He is also only 24 years old, so if PSG asks a monster transfer amount for him this season, it is also possible that Real Madrid swallows the pill and waits one more year. Mbappe is in an amazing position and financially he doesn't even have to care as he will be a winner either way. The signing bonus alone will probably even outrageous. But he would be losing another year with a team that nobody even knows yet what it will be looking like next season with all those players who have left PSG for now.