In light of the discussion happening over here, I want to get this particular part of the discussion going.
This proposal is actually incredibly broad. Most of the time, I think that's a good thing. Worldbuilding is a broad task. But there's definitely a possibility that we're heading into something too broad.
So let me start by asking the following question:
Is character development (any details of one specific person in the world being constructed) or story/plot development considered on-topic here?