I could see the Empyrean hiring mercenaries, but probably only for defensive wars. Forcing their religion does not seem right though.
From a recent game: The Elohim as Council of Esus. For some reason, I see them as a cross between Buddhist monks and ninjas. Yes, ninjas. FfH needs more ninjas, no?
Really, though, I couldn't imagine CoE Elohim as anything else. I also imagine they'd become, while still noble, far more pragmatic after adopting the ways of Esus. They'd give you shelter, but would watch you more carefully then the Elohim of old. Less trusting, more secretive, and more willing to use force to defend the sacred.
I don't think that a Lich could be Good. Neutral is fine though.
The Ljosalfar and Khazad are pretty closely tied to FoL and RoK. I don't think they are bound to these religions, but not everything makes sense for them. The Order actually fits the Dwarves' theme pretty well (at least their hero, Maros, joined the Order), but AV and OO don't really. For some reason I think that the Empyrean fits the Ljosalfar pretty well, although I'm not sure why. Esus is wrong for them though; if they adopt that, then haven't they really just surrendered to the Svartalfar?
One of my favs is the xenophobic AV Luchuirp who believe that their golems are superior to people. They want to replace people with golems, not because they believe people deserve to die or anything, but because they see people as imperfect, flawed in design, and think they can do better. They'd eventually bring armageddon as a way to clean up and remove the unnecessary people, leaving their perfect world of immaculate beings. To top it off they create flesh golems--ironically using body magic, which would otherwise be useless to them--to assimilate the survivors, as if to say "we can even do a better job with living tissue." They see the flesh golems as transcendance to perfection through design.
One of my favs is the xenophobic AV Luchuirp who believe that their golems are superior to people. They want to replace people with golems, not because they believe people deserve to die or anything, but because they see people as imperfect, flawed in design, and think they can do better. They'd eventually bring armageddon as a way to clean up and remove the unnecessary people, leaving their perfect world of immaculate beings. To top it off they create flesh golems--ironically using body magic, which would otherwise be useless to them--to assimilate the survivors, as if to say "we can even do a better job with living tissue." They see the flesh golems as transcendance to perfection through design.
It does raise the question- can Nonliving units get religions? If so, A horde of AV Golems would be a sight to see.
Bannor/OO would certainly be off the charts, as well... I can't really imagine that one.