I had an idea for a 4th ethic that could be in a patch or the expanstion i don't have a name for it but here is the jist of it
They belive that good and evil will destroy all that exists that there can't be a balance and all that will happen at the end of the battle will be a void of nothingness
-3 to relations with neutral
-3 to relations with good
-3 to relations with evil
yeah i no it seems kinda bad but its an idea that could be expanded apon