It seems possible that, should someone be elected who completely embraces the TRUE Faith (as was held and maintained prior to V2), and that person tries with all his might to reverse the current situation in the Conciliar church (i.e., make it wholly Catholic again - not just the buildings!), then God can 'make' him a true pope.
Does not the above hypothetical situation mean that once this 'type' of pope arrives, his renunciation of modernism/liberalism/heresy permits him to be a true Catholic pope? And then, that those in the magisterium who follow his path, also become truly Catholic again? Just a thought.