Isn't it quite possible or likely that God knew in advance that Satan would disobey? Seems to be all part of the plan. Sort of like the Garden of Eden scene -- there were no surprises there really, were there? If God is All-Knowing, are we to suppose the wool was pulled over his eyes? Must have been all part of the plan. So my take on this reformation scenario is that, if that were to occur, there would be no surprises there either.
I also believe that God knew in advance that proponents of evolution would make a religion out of that.