He'll probably skip this offer since he seems to want to stay in Europe. He is still one of the best players out there, it's natural that he'd like to prefer quality over anything else. It's my personal observation, but whatever decision he ultimately makes, I wish him the best of luck. Yes anything is possible as he approaches the climax his remaining days in soccer.
Fabrizio romano has been made it very clear the future of messi. Messi's priority to continue his career in europe even though he must accept his salary to be cutted

The chance for messi to go to the al hilal is quite small at this moment. It's not until messi will be thinking if his age was old enough to play in europa and then he will think to continue his career in arabian league but im not sure if arabian league will be giving him second chance again.
He will be thinking about that if he will have the same fate as pique. Messi becomes even older and this is also giving a big impact on his performance.
Seeing how bad he was in PSG makes me think that he may have faced various difficulties when he will be playing in barcelona again.