If Walt were still alive...this thread would have never been started.
A thread titled "What happens when Walt passes away..." probably would have been, though.
Although, as I kinda' alluded to before, at 111 he'd probably be playin' peek-a-boo with himself.
I don't think walt would be totally disappointed. I agree with many that he would create his brands, but I think he would be totally pleased with the technology. I think the repair of the parks would make him unhappy, especially the visibility of construction and maintenance staff to guests.