You might be right there. If Bernie can connect with minority voters, then he can really give Clinton some trouble. I just don't think that he can win with the youth vote. The polling is much thinner in Nevada and South Carolina, so it remains to be seen if the narrative that Clinton will fair much better in those states is correct.
Clinton's email issue could help Bernie too if it doesn't go away.
As an aside, IMO the GOP's best chance at the Oval Office is Rubio vs. Sanders. That would be an interesting election.