The shocking revelations in the Vigano letter are capped with a call for the Pope to resign.
That might be the worst possible thing that could happen at this moment in the history of the Church. Francis is surely not responsible for the clerical scandals around the world, but he must know a lot. If he resigned, he could quite possibly take a lot of secrets with him.
The council of nine cardinals have expressed unanimous support for Francis, which raises some questions in itself. That might be the signal that it is not time for Francis to depart. But Francis is wrapping himself in the cloak of clericalism that he has condemned. He said he would not answer Vigano, but then he might do so later.
I recall the comments of P. Benedict that the Church was on the verge of capsizing, and that comment makes me wonder how much Francis could reveal. There are forces outside the Church and inside the Church which have created a momentous crisis of scandals, cover-ups, and abuse of power.
Resignation would be the papal way of kicking the can down the road. That would precipitate a very interesting conclave, and THEN what would happen?