PSG are likely to hire Luis Enrique as coach. If Luis Enrique is the coach I think he will want full freedom to build his squad. And will want to build his squad from scratch. Mbappe's relationship with Neymar is not good. And so PSG management has to decide to sell one of these two players. PSG did not benefit much by keeping these two players together. I would say PSG should build a squad full of youth with the help of Luis Enrique. As a result, they will get stronger and more organized performances from the squad in the future.
After the negotiations between PSG and Nagelsmann failed, only Luis Enrique was predicted to become the new PSG coach. now, PSG has officially not been coached by Galtier. so, most likely if Enrique will replace his position. Regarding Mbappe, I think the club has to decide wisely. if Mbappe doesn't want to extend his contract, there is no choice but to let him go in this summer's transfer window.
but the problem is, not many clubs are willing to sign Mbappe. besides the high price, Mbappe's salary is very high. ideally, PSG could negotiate with Real Madrid. because, Madrid is the only club that Mbappe wants. plus, Madrid was able to bring in Mbappe and at the same time pay his salary. it's just that, it looks like there will be tough negotiations regarding the ideal price for these two giant clubs. well, let's see how this drama will continue.
Speaking of Enrique, I think he could be an ideal coach and bring PSG even better. it's just that, I doubt if Enrique can bring PSG to win the Champions League trophy in his first season. ideally, as you say. Enrique was given complete freedom to build his squad. I would even prefer if PSG were filled with new people, including releasing Mbappe and even Neymar. instead, Enrique can build his new squad with an even depth of players.