What was the pre-Nephilim Avvim culture like? What influences carry over to current day Avvim culture?

What is the organized religion like? How does the actual, physical existence of gods affect the worship of them? How are they viewed by the Avvim?

Can you write up a complete listing of monstrous and other assorted humanoids? You mention Goblinoids/Orcs, but it would be easier if there were like an actual list or something.

What do you imagine players doing in this setting? What are the primary occupations of adventurers, of any race?

These are just off the top of my head.