With patch 2.0.0, we are going to introduce cosmetic-only DLCs for Wyrmsun, which will add specific graphics for the units of certain factions. These will differ from those of their base civilization, having a more particular look; for instance, the Frank Tribe and Francia factions having some of their units use graphics based on Frankish warriors.
Along with this change, Wyrmsun will become free to play on Steam, and those who have already bought the game will then receive two faction packs for free, as thanks for their support :)
Faction-specific unit graphics will also be available for use with custom heroes.
Below is a preview of the Frankish horseman's portrait: