I am willing to assist in this realm, as it is roughly familiar in a few concepts and ideas to a campaign setting or two I've written. That said, I believe there is great potential for building on what is here as a framework, as there's both ample room and time to avoid... I suppose the best term is stereotyping or committing to repetition.

I tend to be better with concepts as a whole than names, locations, persons and the like, if that is of any assistance.

As an example of sorts, I can already imagine a few roles between the souls at hand and the rising chaos of the world itself; explanations and rationale, in a way.