PSG president, Nasser Al-Khelaifi is more concern about this issue, he plans on dealing and resolving matters with Mbappe. PSG will only tried to convinced him to stay but he has made up his mind and will leave as a free agent next season. Kylian Mbappe is the key man for Paris Saint-Germain, his presence count in all games featured. Unfortunate events do triggered and have persuaded the Frenchman to seek exits doors from Parc des Princes stadium next summer, he won't be able to continue playing in PSG shirt because he has mapped out other major trophies to lift and Les Parisiens won't be the appropriate team that would give him such incredible honors.
Mbappé was suppose to leave the club this summer, he already had an agreement with Realmadrid and even rejected a move to the Saudi that came with huge offer of him earning a bigger salary and other financial benefits just to favour his plans of moving to Madrid, however PSG were forced to punish him, by stopping him from training with the Snr team and even increasing his release clause to keep other teams away from signing him, which made Mbappé to change his mind and sign a new deal, hoping they'll allow him leave next summer.
Well the new 1 year contract he signed this season includes that he'll be allowed to move to another club of his choice for the right price, therefore I don't think Mbappé would want to remain at the club no matter how they try to persuade him to stay, he'll probably move to Realmadrid next summer.