Posted By Beauvais at
Would that population still be considered Neran? Or would they be a new tribe/ethnic group, as their genetic makeup and religious background will have morphed into its own distinct identity over time?
If you use biome adaptation as the primary driver of tribe affiliation (and it is my understanding that this is the case), then the sort of mixing and matching you describe will result in the dilution of the genetic traits that grant advantages to any particular biome. So genetic mixing over time inevitably leads you to "Neran", the generalist tribe.
FWIW, the Neran are not of the Qindred faith but the Virtori faith, although they appear rooted in the same creation myth and you were probably just using that for illustration purposes anyway. Nevertheless, even within existing tribal cultures, there are "faithless" members of the tribe. They might be considered a "subclass" of the tribe and treated poorly, but they are still members of that tribe.
So faith alone does not appear to be a driver of tribal affiliation, at this juncture. But who knows how things will evolve over time.
How do you think this will affect players's societies and politics? Will rulers feel threatened by other religious groups in their realms? Will minorities be targeted by discrimination and violence? What if the ruler of a province follows a different religion than his subjects? What if his faith is different that his liege's? How will politics and religion mix in Elyria?
NPC attitudes will be influenced by religion and the AI will act accordingly, but PC attitudes are not predictable in that way. Therefore, anything is theoretically possible, so "yes" to all the above. I suspect politics and religion will mix in very similar ways to how they do in the real world. :)