Two very good ideas!(i promise)

[Endoperez]

If we were able to mod poptypes, and could add a new poptype for every nation in the game, it'd be pretty simple to have e.g. the capital of C'tis to have a custom poptype that allows the recruitment of C'tis Militia, C'tis Light Infantry, Slave Lizards, Runners and Lizard Shamans, or the capital of Abysia to have a custom poptype that allows the recruitment of one type of Humanbred, Garnet Amazons (but not griffon riders) and maybe a mage of some kind (Garnet Sorceress?), etc. Even now, the poptypes of the capitals could be defined to be e.g. Knights/Longbow for Man (which would be very nice because the capital would actually have the resources to produce knights), Garnet Amazons for Abysia, Lizards and Lizard Shamans for C'tis, HI/crossbows for Ulm, tribals for Mictlan/Machaka/Tien Chi, Markata/Atavi for monkey nations, etc.