The most encouraging thing I've heard about Warren lately is her reaching out to try and rebuild the DNC and revitalize the corpse that is Tom Perez and do downballot work too. She was assuring old party stalwarts she did the same thing during her last re-election campaign and that she'd do it again in 2020--she's good at fundraising and drumming up support that way, and wants the DNC to focus on GOTV in 2020 like they did not do in 2016.
Still, Bernie has more volunteers in Iowa than the rest of the candidates combined, and now he's leading in national polls (which don't really matter), New Hampshire, 2nd in Iowa, and keeps putting out great new plans. It's good for the party, not bad, if he runs a good campaign, no matter what the dead eyed rj's tell you.