I'd like to hear a bit more about religion, especially how it interacts with magic and with politics (1). Is there, potentially, a spiritual dimension to TWS magic? Can gods call for their followers to do things? Can religious hierarchies do things without word from further up?
You've said a few times that you will be polishing up for an "Early Access Release". This will be available for us folks in the sub-$50 seats, right? Just making sure I'm interpreting it correctly.
If you are looking for a post $53K goal, consider "Tiger by the Tail" mode. You take the role of one of the nations which is trying to secretly bridle and control a sleeping old one to help accomplish your goal. You get an expanded list the the nations regular actions to choose from and some protection from corruption by that old one. Bad things happen if your neighbors realize what you are doing. And extremely bad things should it get out from under your control.
(1) A necromancer and a psychopomp walk into a bar. Each places an order for his favorite spirit.
Unfortunately playing as a leader/nation/hero would really need to be its own game, a lot of work would have to be done to make it playable inside That Which Sleeps and I'm not sure it would be that interesting (unless from a multiplayer perspective). Heroes and Leaders spend a LOT of time simply "waiting for a task to complete", which is great for you as the Old One but wouldn't so fun controlling them. That being said, what you describe is actually possible in game with a little bit of modding, it wouldn't truly simulate the leader experience but it could create, I think, a very fun Old One game with a focus on a particular nation.
Gods who have an interest in the world (many are rather apathetic) can give Quests much like Kings and Leaders can, but instead of giving a reward in gold it is simply a call to the faithful. As for spiritual, there are miracles that can be requested by Priests of the religion - but all of these actions require "Faith" which doubles as the vitality of the God - a Priest may ask for a miracle and have it granted, only to see a now weakened God swallowed up by a rival.
As for hierachies, it's a complicated question - the way we trigger events is either from an AI Entity, which for religion can be "the head of a religious institute" or "the God themself", or from a POI looking for its "random event". I put that in quotes because they are in great part predictable, so for instance if a POI contains a temple to a God it may have for its event something to do with the temple, which is as close to the hierarchy as you get. We do not simulate elements below the Leadership or the structures. However, more than one cult or religion of a God can be formed - so you may have a militant arm of a God's faith as well as a more peaceful interpretation. They rarely get along however.
Everyone who has pledged $10 or more will get Early Access, which will be launched in part by the determination of the Beta testers.