I really want to get the Nomads in and supported by this campaign.
Could be indeed a cool thing to do. Nomads were a favorite race
A feel for the old "Human" race of Aow 2 and shadow magic had some units potentielly mixed. I made a little list with potential units. As this game developed, I would see dreadnought class becoming a rewamp of all units except cannon to become a more "pirate" side.
While warlord, rouge could remain as the azracs/nomad background where the pitguard is the warbreed and roc rider as manticore. Necromancer unchanged.
Theocrat could have more djinn units favour the yaka side and arch druid favour the more amazon side or barbarian.
The impression of the class system is the more complicated side. My line of units where mostly a potential.
Lizardman can be something else as far as it goes.
As rocs or something, Scorpions would be cooler.