Is this a viable path to the nomination for Sanders?

[Stranger in a strange land]

I figure there's about a 5% that he can still get the nomination. I figure there's at least a 10% chance that Hillary will be indicted between now and June, in which case he could win outright. However, what more likely then happens at the convention is that a large block of superdelegates votes for either Biden or Warren on the first ballot, who then goes on to win on the 2nd.