I think the shift in official Catholic attitude towards Judaism is relevant here. We once spoke of the NT as supplanting the OT (as if God changed his mind!) but now we speak about Yahweh's perpetual fidelity to his covenant with Israel. 

We agree that the episcopal magisterium is currently one hell of an obstacle to the Spirit, and then, it seems to me, (1) you "look forward(?)" to the Spirit abandoning the bishops by withdrawing her teaching charism, whereas (2) I  look forward to transformation of the college of bishops under the guidance of the Spirit, as happened during the iconoclasm controversy. 

Recall that the Spirit's view is very long term, and JP2's and B16's transformation of the college into a bastion of narrow-minded orthodoxy is very short term. The heroic bishops of V2 were a slightly earlier incarnation of EXACTLY THE SAME episcopal college. 

A bad patch is just that, a bad patch; not a reason to throw out the baby.