TBD. If they actually build a broad coalition around it and actually use popular pressure to resist right wing pillaging of the country, FW.
If it's just the same elite Progs and Libs sobbing into their own navels, HW.
Was there any chance it would be anything but that. Sophisticated, cosmopolitan liberals don't want to share their coalition with smelly poor people.
If we don't approach every day with hope then what are we doing?
To seriously answer your question, though, I think Bernie helped the elite progs I know just a little bit. Then again Trump winning caused them to backslide just a little bit, so ¯\_(ツ)_/¯