It would be interesting to see a story where the WoL's ideals no longer match with those of the Scions, but the thing is. I don't think that would happen as they seem to be a tight bunch and the WoL seems to not be enthralled to the mothercrystals (as the existence of the Esteem would indicate, they still ave free will and a side that doesn't entirley enjoy being the WoL). I could see it happening if either party goes the Well Intentioned Extrmist route, but that also seems improbable.