I don't know how attractive going to Real Madrid is at this point. I know that was always the destination for Mbappe, but things change with time and the Premier League simply seems more attractive right now, especially with CR7 gone and Messi on his way out sooner or later. He'll definitely have to run down his contract to get a move done, because no club can afford him and PSG don't need the money and hang on to their players, unless he has some kind of gentleman's agreement with PSG, which is also possible.