First, there are no air units...planned. Modded, perhaps? Dunno.

Secondly, dragons will be in the game...but they represent beings of already-unquestionable power, intelligence, age, etc. And since we can't fly anyway atm, I doubt they'll be mounts.

But yes, dragons do rock...and I look forward to having one/two/forty six in my armies.

i think it would be nice to be able to give your units and the sovereign different mounts (maybe the one for the sovreign is a stronger version of the normal mount e.g. dragon - high dragon, or you can have / find / unlock different versions.... -> see taming idea also on this board)

possible mounts would include

wolfs

boars

horses

pegasi

griffons

dragons

saurians / lizards

some undead mount (skelettal dragon / horse)

some demonic mount(s)

chimeras

spiders / scorpions / other insects

....