Fantastic stuff! <3 you all (should read as "heart you all", though I realize it looks a little like I'm mooning you all!). Our current world was so enlarged and enriched by your contributions, and I see that starting to happen here already, with dragonborn assassins and sentient cogs.
Cora:
What's the situation on races. Gnomes are the big guys but where do other groups fall? Are they broadly represented across all strata (there are say orcish nobles and slum dwellers, dwarven robber barons and dwarven dock workers) or is it a "monstrous/savage humanoids are nearer the bottom" situation?
Obviously any race we want to play likely finds a place, but more outlandish races like kenku, aarokocra, fairy and satyr might not fit quite like elf and tiefling would?
My original concept, which is certainly not set in stone, was to try to conceptualize a world where race was not so prominent a feature of people's identity and social standing, particularly given its preeminence in our current campaign. I think this is also a concept borrowed from Eberron? That your relationship to the dragon overlords - whether you were a collaborator or a resister or something in between - matters more than whether you have wings or horns or a trunk. The races may once have had distinct cultures and societies but the dragons conquered everyone and flattened all that out and mish-mashed everyone together as their slaves, so now everyone's in the same boat trying to build a new culture and society from scratch, without strong pre-existing racial identities.
To Sikuaq's concept, I think even for dragonborn, it wouldn't have to be the case they were all necessarily aligned with or nostalgic for the dragon overlords. Many people would have a draconic ancestor somewhere in their past, so while the dragonborn might have been more likely to serve the dragons, it's not something that's immediately assumed or held against them.
I think that also means no one is outlandish. If you want to play it, we'll find a way to make it work.
Cora:
Was also considering asking about homebrew classes like Mercer's Blood Hunter or Benjamin Huffman's Pugilist (possibly a decent union organizer . . .) but there's not much that's needed from these that core classes don't already provide. What's the sitch on artificer?
Same idea here: if you want to play it, we'll find a way to make it work. Artificer is an easy fit.