I pretty much like the current religion and alignment setup.
So what would happen when originally Evil leader switches to Empyrean twice? It can happen within 10 turns. If alignment changes didn't persist like they currently do, there'd be a lot less variety possible within one civilization.Order: All -> Good
Empyrean: Evil -> Neutral
RoK: Evil -> Neutral
FoL: No Changes
OO: Good -> Neutral
CoE: Good -> Neutral
AV: All -> Evil
(Personally, I would prefer:
Empyrean: Neutral -> Good, Evil -> Neutral
OO: Neutral -> Evil, Good -> Neutral