Dude is 70 and got nothing to prove. His team this year is uncharacteristically sloppy and vulnerable on the road. Saban is slipping and everyone can see it. He might be able to right the ship, and he might not. But I don't see him starting over somewhere else.
His next title will be is last, if there is one. If Kiffin beats him this year, I could see him hanging it up. Conference realignment and the NIL don't appear to suit him. I don't know how many more seasons he'll want to coach, but I'm guessing it's less than 5.