Personally, I kind of want one of them to be the Hhetsarro, and considering I found a big, empty flat space (like the kind we have seen for other tribal/allied quests) not too far from their camp site, I am thinking there is a good chance they will be. I might be a bit biased though as a miqo'te player who's been wanting more interactions with the tribe oriented aspects of my character's race, and the Hhetsarro are a close second. XD