Well, aside from the elf factions and the lizardmen factions, and perhaps some surprise skaven factions (maybe not on release?), there's room for an amazonian faction or two, the vampire coast, an Estalian colony...I wouldn't be surprised if there were some Orcs or Beastmen, but I don't think they've been directly mentioned in either Naggaroth or Lustria. There might be some reskinned Norscan Tribes meant to represent the Hung up in the very north.
I'd also think it was interesting (if playing as Lizardmen) if some 'Conquistadors' or suchlike, reskinned Imperials or Estalians, would show up as wandering armies in Lustria to be fought off, sort of like Beastmen in the Old World.>>53527161
Huh, I did not know that - and looking closer, Bastonne and Bordelaux have had a historically good relationship. It might be unusual or dangerous, but do you think they would let Bohemond take the reigns? He's not much of a steward, but that means he'll appoint someone else and won't use it for his own gain, making him safer than some.