Yes, this latest batch of 22 emails are so secret that even the State Department says it can't publicize them, Hillary's pitifully lame excuse that they are being hypersecretive notwithstanding.
I think if Hillary bows or is pushed out, the powers that be will brush Sanders aside, probably for Biden.
Much of the American electorate is made up of ignorant fools, but I don't think they are (as yet) quite foolish enough to elect Sanders to the presidency, although they came close with the current incompetent.