Most likely Enrique will try to find a replacement for Mbappe. Mbappe is a special player. And no one can fill the absence. Mbappe is a much improved player. He is physically and mentally very skilled, strong and he is a successful player. No other player can fill Mbappe's absence. Change is good at PSG. Even though Mbappe is not at PSG, he pushes his team to play well and do something new.
PSG's most important player was Mbappe and he scored regularly. Leaving such a player out of the squad will reflect on PSG's overall performance. Luis Enrique has tried to stabilize the team without Mbappe this season. Luis Enrique rested Mbappe for several matches and experimented with the team. But PSG are not strong enough without Mbappe. So Mbappe needs a worthy replacement for Luis Enrique. Osimhen or Vlahovic could be better choices as Mbappe's replacement. I think Luis Enrique will want to add one of these two players to the squad.