I don't think she is currently interested in running again, that could change down the road. I think depending on the results of the Russia collusion and Trump finance investigation, which if indictments start flying might cause many to question some of the validity of Trumps win and take some of the heat off the reason why she lost, rather then it just being about "she lost to Trump" when anyone else could have won in the face of foreign sabotage.
As stated getting through the primary would be much more difficult, as others will want to run. If she did make it through as a primary candidate it would likely be with a divided field splitting of the primary vote. Another scenario involving her not running but being selected as the nominee in a DNC brokered convention scenario where delegates select her in the event they cant find consensus.
I love how it's a "finance investigation" now. I knew it never had anything to do with Russia and instead was a search for crimes because you refuse to believe you lost.
They are both connected to each other and under the same umbrella.