Back to the Mamool Ja - they're a Beast Tribe that migrated to Eorzea, aren't they? I was under the impression that it was fairly recent. Considering how few we see in game, the bulk of their population is probably still in their homeland, so if we get to see their Primal eventually it probably won't be until we gain access to that area. My guess is that they're originally from Thavnair or around Radz-at-Hahn, mostly because the Mamool Ja in FFXI were around Aht Urhgan (which I imagine will be very similar to Radz-at-Hahn). Though the Mamool Ja could also be in the New World, for all we know.