I mean, they'll go to the convention and it'll be first vote then over. No superdelegates are going to Sanders. He's spent the last two months going scorched earth on them they have no reason to support him.
As for the news regarding the emails, to me it sounds like "previous Secretaries of State, including most notably and most egregiously Hillary Clinton, have done a poor job regarding the safety and integrity of government emails. This cannot happen again, and we need to put in place protocols so that future SoS can't do this", and less "Hillary Clinton is guilty and going to jail". Consider that this is the conclusion in the report:
Source
So again, this kinda just sounds like a security audit, where they are taking steps to address the problem in the future. What part of this report leads you to think Hillary is closer to indictment?