The rest of the map doesn't favor Hillary like the early states did. Sanders getting a lead in pledged delegates is a real possibility. If that happens, superdelegates won't matter. If the DNC takes the win away from Sanders, many people like myself will never vote Democrat again.
But the odds are still pretty long. It will most likely end up being Hillary. I think Sanders started all this with the goal of simply pushing Hillary further to the left. Going to the convention with 1000+ delegates (even if he doesn't get the nomination) must seem like a dream come true. Hillary's got to throw some meat to those people, if she wants the convention to go smoothly. Something like a promise to break up big banks, strengthen Dodd-Frank, govt. bailout of student-loans, etc.