My comments stand. It's a lot more complex than one man; he has a vast organization which doubtless has an even more radical succession plan, and powerful influence over much of the mainstream media and various far-left orgs. Most importantly, any weakling will be exploited by unelected forces.
You overestimate him. He’s just another aging rich guy with a big head. And thanks to his past currency-manipulating antics, he’s got a lot of enemies in high places — more than any other aging rich guy with a big head that I can think of. If he has any succession plan at all, it will splinter quickly into lots of in-fighting factions.