Only SPL offer mega contracts like Al Nassr's given to Cristiano. Barcelona president said he's trying to sign Messi again but Al Ahli's in talks with Messi because his Inter Miami contract's ending in Dec 25. If Messi wants new experience & mega money he'll go to SPL
It has been suggested that Al Ahli made an offer to Messi, but it has not been clearly stated which club made the offer. It is stated that Ronaldo earns 185 million euros per year and will even have a minority stake in the club. This is an example of the huge financial opportunities that the SPL offers to attract global stars. Messi receiving a similar offer could be part of the SPL's strategy to increase its brand value. The SPL could be an option. However, the emotional appeal of Barcelona and the stability of Inter Miami are important factors that will influence his decision.
I don't think Messi will ever return to Barcelona, at this point he walks on the pitch and makes a ton of money. It's the same thing about Ronaldo: they are both football legends but their time in Europe is done, eventually they could play part of the match but not the full 90 minutes like they do in the USA or in Saudi Arabia. And the other thing is that nobody would ever offer them those crazy salaries. At this point they are more businessmen rather than football players.