Al Hilal is the strongest club in Saudi League without any doubt with their depth and chemistry is also amazing which giving them good advantage against their opponents they were never been depended on one player all contributing as best team unit most chances we will have no challenge for them in this season as well for having another title.
Al Nassr is doing good job as well but their problems not ending with attack and defense which giving them not chance for going at the top now after 10 rounds they are at third spot 6 behind leaders Al Hilal and 5 behind Al Ittihad which is doing good work for having better end of their season after having problematic end in last year. We still have 24 rounds which can bring many changes in league table but as things are going if we have no injury or other problem we will have no changes at top.
I believe Ronaldo moving teams wouldn't really benefit either of them. Al Nassr would be losing their best player, and Al Hilal would be adding new players to their already packed squad, which is why I believe we are going to end up with a lot of trouble as well.
Al Hilal will not want to get Ronaldo for strategic or even football reasons, if they ever want to do that, it would be for marketing reasons and to make their team even better. I believe it shouldn't happen, we saw Ronlaod at Al Nassr already, and that's good enough and shouldn't really be changing much at all, and as long as they have what they need, they are not going to really need anything further at all. We should just try to avoid making those moves if I were them.