Has the Church ever repealed a council? Or a catechism?
I am not sure, but they can start right now!! The Novous Ordo Churches has done nothing but destroy the Catholic Church and the Catholic Religion, all for the sake of World Socialism, which is failing already around the world.
Not that I know of, but there have been some that have been corrected or refined (i.e. Trent).
This would be a great idea, but some of the apostates in the Vatican need to be out of the way first. They're entirely too vocal.