Last night Jill Stein of the Green Party was standing outside of Wells Fargo Center during the protest with a bullhorn. Based on the footage I saw she seemed to be whipping up a goodly number of Bernie supporters to make her their new standard bearer.
It would be interesting to see a 4-way poll (Trump, Hillary, Johnson, and Stein) to find out which way the Bernie faction is going.
While the Libertarian candidate will steal from both Trump and Hillary, Stein is pure Left.