The joining of Neymar to Al-Hilal has made Dembele now officially wearing number 10 at PSG and it must be understood that PSG does not want to continue to depend on Neymar and I think this is the right time for PSG to transition to a new player. I heard the news and it seems true that Neymar will get full facilities while joining Al-Hilal and that is a very fantastic offer for a star player. But Neymar must also try to promote and popularize the Saudi league in the future so that it will become more famous throughout the world.
But PSG still have Mbappe, so they're still depend on star player, just like Tottenham always depend on Harry Kane. The real power of PSG is when Mbappe leaving to join Real Madrid, so we will see how good they're.
Neymar don't need to promote and popularize the Saudi Professional League, but there are so many medias and articles following Neymar. We've seen Benzema, Koulibaly, Kante, Firmino, Mane, Fabinho etc come to Saudi Arabia, but it's only known by football fans. For Average Joe, they're only know Ronaldo and Neymar join Saudi Arabia which mean they have a lot power and popularity.