That is a really interesting point. Without some process formalizing his (desired it appears) removal as BDFL he could override any future construct that is built to guide python. The thought of a schism in the direction of python is worrying.
Edited to remove inadvertent backhanded compliment
At the end of the day, he's not actually a dictator. He's just a contributor with a lot of influence, borne out of respect, and that will remain true regardless of any formal or informal position.
Exactly, and if the community as a whole disagreed with him there is nothing stopping them from forking and forming their own org. Nothing except hard work that is...