because neymar is absolutely a good player, and with Mbappe could do great things for the next years. I've already heard something about his discpline but I don't think that it will be decisive for letting him stay or not.
But you need just one season, one season of him playing at his absolute best and along with Mbappe, that would be crucial beast playing that will get them the UCL cup. They do not even need him to play during the regular season domestic league, they just need him for the last 10 games of the champions league, if they win those, they would be fine with him playing zero games in ligue1, would be weird but still happy situation.
Perhaps Nasser Al-Khelaifi will keep Neymar at PSG for one more season and give him a chance. If Neymar fails to play well next season, then PSG boss Nasser Al-Khelaifi is no longer interested in Neymar. We heard some rumors that Chelsea is looking to sign Neymar this season. But today Jason Cundy(former Chelsea defender) has made some derogatory remarks regarding taking. He says Neymar is an overrated player. And he doesn't want to see Neymar in the Chelsea squad. Even Chelsea management may not be interested in signing Neymar now.