The people will most certainly not vote for her. People don't "Vote for whoever they are told to vote for." Hillary lost to Obama and faced reasonable opposition in 2016. Her support will only drop further after this (esp. because the field will be more split - as I have said many times, I don't see Biden letting Hillary take the nomination again. If no one else from the centrist/establishment wing of the party runs against Hillary, he will).
The fact that the left have the uncanny to regurgitate whatever they hear from the media leads me to believe they will vote for who they are told to vote for.
But I can't see Biden running. He'll be 78.
TBH I don't think Clinton will run personally, but IF she does, and IF she demands Establishment support, they will give it to her.