In a way this would make things a little more balanced, technically. Darkies are hindered by the fact that they can be at war with each other. The light(ish) sort of federation of countries (ayamao, zhensh, tasl)rarely ever fight (yes I know they are fighting now), and are at worst neutral with one another.
If you were to transform Zhenshi into something completely different than it's light-grey origins (the aura of the Council) then you would give the light side a wild card to deal with rather than what is normally a fairly stable ally/truce status.
In practice though lighties have enough problems hahaha.
Furthermore I've always liked the current character of Zhenshi. There would have to be some corrupting event to change it to a truly "auraless" place that could be swayed to any power... i.e maybe the way Teron would be if it were to have a tribunal. Could be interesting but I'd miss it.