I think Hillary still has one more run in her in 2020.
She would like to run, for sure. However, Brazille’s comments was a warning from the hierarchy to not seriously entertain the thought or to continue to try and gather support for another run.
When the Democrat party wants you gone, they will start giving minor criticisms, then they will talk about distasteful stuff you did to acquire political power. The next step is to start mentioning the acts of criminality if you keep persisting in trying to win nomination.