Ok, I must admit, I was to lazy to read all the posts until now. So maybe I am double posting something
I hope you can forgive me.
I have been playing adventure games for 25 years now. There are always some "stanrad deities" which I think are getting pretty boring by now. Therefore, I suggest to create gods that reign over opposite domains. For example: A god that governs "freedom", "balance" and "chaos". So somehow this gods will ensure that the cycle will continue endlessly and there will be no "end to the world" because one god is able to dominate it at some point with his domain. And of course, different factions can pray to this god with contrary yet similar goals.
I strongly think that such a "tension" helps to keep the pantheon vivid and prevents the world from going "Pantheon Good vs. Pantheon Evil" which is pretty sucked dry by now
So I suggest something like
Balance and Chaos
Luck and Order (in the meaning of Planning / Strategy)
Craftmanship and Nature
Darkness and Hope
Life / Creation and War
Knowledge / Academics and Ferocity / Feral Lifestyle
Arts / Emotion / Community and Slavery
Lies / Deception and Justice
and so on
Maybe this gives you some good suggestions ^^