I'm leaning either East or North, personally. As for characters, I'm thinking about Supernal survival Zenith, who is a sort of beastmaster/nature priest.
If the party ends up sans a dawn caste, I have a concept there as well. Mostly one that involves athletics charms and giant axes. As for the Survivalist, I'm getting a very Druidic vibe from the character. Will post more on them as they develop.