If he can recover that would be great, but so far it seems that he doesn't want to play football anymore and it's nothing more than a money making endeavour for him. And with this approach, as we know, nothing good usually happens, that's all. It will probably be his last club in his career and he will not play there for more than two seasons.
It would certainly be great if Neymar could fully recover, considering that many people still hope he can play in the upcoming 2026 World Cup. In my opinion, there could be many reasons behind Neymar return to Santos, perhaps because Neymar wants to be closer to his family, in addition to the injury that has prevented him from playing for Al Hilal until now. So far, there has been no official news stating that the two clubs have reached an agreement, what is clear is that Neymar must be willing to take a pay cut if he does leave Al Hilal. With his physically injury prone condition, there is a possibility that Santos will be the last club in his football career.
What is certain is that at his current age and any club is starting to doubt him because he is prone to injury, maybe he is thinking of returning to his hometown and if given the opportunity he will play there but yes he must be willing to have his salary cut because it is impossible for Santos to give Neymar a high salary like Al Hilal. Because he has a history of serious injuries he should be more careful if he wants to continue his career as a soccer player he still has at least 3-4 years before deciding to retire.