So in my free time, I have been doing some casual world building for a new world for a second RP forum. It would still be owned by Estorica, but I would be making an entirely new forum for it. I wanted to get a general feel on a plot that I probably put more effort into than I should have, and I want to know what people think of it so far.

The document has a lot of details to it and comments are allowed so please leave them if you have any. (questions included)
Google Doc

For those of you who need or want a tldr (cause the doc above is in no way a finished product)

Face Claims:
Animanga/Original Art only
Forum:
Jcink
Age Requirements:
16+ with parental forms for anyone under the age of 16 - locked password and age gated section for 18+ RP only. 

Participation/Activity Checks:

I am considering a system, where you can make your plots but you have to spend credits (which have a max limit of 2) which can only be earned by participating in someone else's plot. This would facilitate a system that not only connects all of the various plots that could exist but provides an incentive to play with others.

Premise
    Cavus existed in a constant state of War between Spirits, Mortals, and Demons. Battles were fought using the energies that existed before the creation of the world, and In this war, the world was covered in destruction, death, and abyss magic. The God of Balance ‘Elise’ used all of the known magic in the world to defeat a threat to mortals and spirits alike. She did it with the hope that it would end all wars once and for all. Instead, it stripped the world of magic, banishing gods, demons, and spirits for over 500 years.
    Mortals lived in hatred of one another, over those years, warring over land, food, and gold and in their hatred they gave birth to the God Eater. The God Eater summoned demons, used lost magic, and battled with mortals in an attempt to conquer them all, The God Eater nearly ruled over all mortals, but the mortals came together and begged the last known spirit of the world to grant godhood to one of their own. Their wish was granted, and magic was returned to the world. Mortals drove the God Eater back into the abyss where he wouldn’t be heard from ever again.
    A century has passed since the defeat of the God Eater, and the stories of battles between gods have faded away into legend and folklore. The world once again finds itself teetering on the edges of war between mortals. Demons rise from the abyss to bring calamity to all. The cries of the weak go unanswered, and where magic was once abundant for all mortals only half wield it today.

General antagonist:
Demons & Their creator the God Eater Kurose
Sub Antagonist:
Different Nations, and agendas that go against other groups that player characters may align themselves with
Races:
There is an Approval process for various races/species/whatever you can come up with. Technically and generally speaking anything and everything could be allowed, but some creative people assume that means they can break the world and be all-powerful and that isn't the case. 
Classes:
While using magic is a focus in the world it is not a requirement. Not everyone can use magic, and instead, use intelligence and craftiness to get the job done.


I would appreciate any feedback on my ideas and hope to hear back from anyone.