Without Neymar Al Hilal have shown their best strength last season and if he returns fit and joins the team at the start of this season of course that is quite good news. Fans are of course looking forward to Neymar's action on the field, but it's a shame that he often gets injured because when he recovered, it wasn't long before he was injured again. It may be true that Neymar's recruitment did not end as desired because he had frequent injuries which hampered him last season.
Al Hilal impressively dominated Saudi Professional League 2023 - 2024 season almost without contributions from Neymar. He only had several matches for them with nearly no impression and got a serious injury, missed nearly a whole season. This means Al Hilal are very strong even without Neymar so the recovery and return of Neymar in a new season, is only one potential plus for Al Hilal squad. If Neymar plays well, he will contribute to make Al Hilal stronger and can defend their title. If Neymar plays bad, Al Hilal can play well with other players, not big issue to worry.
This season, several other teams will try to build their strength to become stronger, as has been done by Al Ittihad, where they are quite active in tempting many of Europe's top players in this transfer market.
For Ronaldo, of course, he will target the title this season with Al Nassr because he wants to taste a prestigious trophy before he announces his retirement.
Al Hilal, after one dominating season, will be challenged more by other teams in Saudi Professional League. They will have harder job to complete and defend their championship but with strength they have, they can succeed with this task. If Al Nassr won't improve their defense system, they will less likely be able to compete with Al Hilal and beat Al Hilal in a long season competition.