Would Nabateans be considered an endangered species? And would you consider it right that they are distrustful of humanity at best (due to most of them being turned into Relics, not to mention the murder and relic of Sothis as well)?
To my knowledge, that wouldn’t be a false statement. Their numbers never recovered after the attack on Ailell and the ensuing war. With only Rhea and Flayn left, with Flayn being related to the remaining men, I wouldn’t be optimistic about their survival. There may be some other means of reproduction that I’m unaware of, but I can’t see why they wouldn’t have employed it already if such a method existed.
Sitri suggests there was something in development, presumed abandoned for the poor health it left new Nabateans with. This does mean that Byleth themselves is half-Nabatean.
Perhaps they will life on in another form. I would say that is better for their sake than extinction.
