This demon woman sees an opportunity to be the consensus candidate after the circular firing squad finishes up.
I believe that Hillary is the MOST PROBABLE Democrat nominee in 2020, based on the Democrat Primary & Convention rules.
Primary Rules have been changed in many states to give proportional number of delegates, rather than winner-take-all. This will make it near-impossible for any candidate in this large field to get the 50% delegates for a first-ballot nomination.
Convention Rules for “Superdelegates” have changed. (Hillary had nearly all Superdelegates in 2016 in her pocket; Superdelegates were about 1/3 of all votes at convention - Bernie had no chance.) They don’t vote on first ballot (see above - it will be an inconclusive round), but they vote on subsequent ones; additionally, delegates can change their voting on 2nd or later ballot (see each state on this). Most likely some of the “also-ran” candidates would direct their delegates to vote for “the best consensus candidate”... who would be Hillary.
I predict Hillary will be “drafted” to be candidate on 2nd or 3rd ballot. She will be well rested and healthy because she didn’t have to go thru the primary grind!