He won't be left without a club because he wasn't released by PSG. His contract with PSG is still active. He might not get a chance to play, but he certainly won't be left without a club. Manchester United would sign him in that case. We know the team needs a goalkeeper. Who wouldn't want a goalkeeper like that on their team?
He certainly won't lose his club, but the problem is how to get playing time back, as Luis Enrique hasn't included him in his plans for this season. His contract expires next season, so staying at PSG offers no guarantees, which could actually create a bit of a problem for the goalkeeper. I'd prefer him to move on and find a club that wants him, and we can see two English clubs interested in taking him. His condition isn't great, but I'm sure he understands the problems he's facing, and PSG will certainly let him find a new club.