I wouldn't be surprised if in the end there were at least 12 primals... since there are 12 deities. Maybe 1 will be connected to each? Also it seems like beast tribes in general seem to sort of look to a primal. We don't know who Sylphs and Goblins look to if they do. But I would guess something like Carbuncle for Sylphs...unsure about goblins though.