I wish that Empryean and Council of Esus worked slightly differently then Octopus Overlords and Runes of Kilmorph. Let me explain.
Right now, if you are neutral, it is impossible to become evil or good without adopting the Order or Ashen Veil. This, to me, seems a little strange- you have to instantly go from being totally neutral to being fanatically good or fanatically evil.
What if when you adopted Empryean as an neutral civ, you became good? And when you adopted CoE as a neutral civ, you became evil? You would still become neutral if you adopted Empryean as evil, and still become neutral if you adopted Council of Esus as good, but those religions would keep "pulling" you towards good or evil after you changed to one of them at neutral.
Or RoK/FoL instead of Empryean/CoE. I don't know, the point is one pair of the "Good-Neutral, Evil-Neutral" religions should work like that...