They've already stated their goals, and that's to create a better cooperation between the evil alignments as to be a more effective force in the world. I'm not sure they really have a stake in this. The gods have already stated an intention to recreate the world, outsiders obviously will not be affected, and in either the existing or recreated one the potential for a better organized Evil remains. I definitely don't think they have any independent desire to help the Snarl, which given what it is probably has an alignment of True Neutral.
Ultimately, I think they'll use their remaining time to create the greatest shifts towards an Evil world possible. We've already seen this with both V's actions during the splice (they clearly did not predict Familicide, but oh, the moral conundrum that introduces is delicious, call it a bonus) and the first reclamation, because destroying Girard's gate puts the whole world, gods included, on "desperate times desperate measures" watch.
I don't think they're interested in helping Hel, because she's very clearly the exact opposite of what they've got going on. She is using Evil purely for her own benefit to the exclusion of other Evil's benefits. Loki is hardly a moral paragon.