Are there plans to diversify the gods, i think it would open awesome possibilities if you can have religious beliefs and make a pantheon to your liking. Either you are a monotheism and get probably stronger boni from the single god/goddess you honor or you honor multiple gods.
I don't know if you know the series, but there is an awesome indy game strategy series, Dominions from Illwinter.
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You play the role of a pretender god, competing with other pretender gods for ascension. It even has slight adult content, a few naked sprites and descriptions.
Imho the dozens of nations there are well made, partly fantasy and partly inspired by old myths.
A really cool feature is that you can go on blood hunts and make blood sacrifices to summon various demons.
Also playing a leader similiar to Morrigan or Crone Hellebron from Warhammer would be pretty fun i think.
Imho adding some fun dark route options would be great, of course they should have lots of downsides too. But using your population and captives to please some dark gods and get their help Warhammer pornstyle wise would be fun.
For example you could breed your cowgirls as food for a Nurglelike god and get the help of giant tentacle abominations.