We have seen a lot of great ethnically diverse units, where the generic units from CivIV and Warlords have been made to look more like flavor units for the civilizations.
This has resulted in a lot of great units; however, the units often follow along with how history developed. For example, because the Pharonic Egyptians were replaced by the Saracens, Egyptian units after the spread of Islam are made to look Arab. Similarly, the Aztecs and Inca have European looking units after entry into the Middle Ages.
Therefore, I request that someone make what I am very uncleverly calling "modern-ancients." Using Jaguar, Scout, and Quecha units as a base, some should make musketmen, grenadiers, macemen, longbowmen, infantry, etc... as if the civilization had retained the qualities that made it feel Aztec or Inca but adapted with technology. The same is true for Egypt; use the Pharonic looking units to create interesting pseudo-fantasy units to represent what a Modern Egyptian society would look like instead.
I think this project wouldn't be too difficult. Really it is just using the nif viewer to replace axes, swords, and bows, with rifles, cross-bows, and grenades. However, because I haven't mastered the niff viewer, I thought I would see if anyone else thought this would be interesting.