Why wait Conservatives? Since Cantor is resigning his leadership, now is a good time to show Boehner and McCarthy the door as well.
My guess, from here in Ohio, is he won't step down until at least after the November election, if then. Seems prudent! (for those who missed it, Boehner won his own primary very handily, a couple weeks ago)
But there must be quite a kerfuffle going on right now re: who will become the next House Majority Leader, LOL! Cantor is principled, and a good man, regardless of his shortcomings...you have to give him that at least, IMHO.