We could also see some faction colors. I hated how in most mods, there were no color scheme for factions (thinking about you, Floris è_é)
Dark ages for viking conquest (although a great mod) also removed the whole color scheme that was intended by the original DLC's devs, and replaced the many different armor models by some generic "only-one" armor per faction instead, that was too poor :/.
For instance, we could see on Swadians, that seem inspired by european/roman soldiers, the main color of their faction on their tabard, covering half or 3/4 of it, and the other half or 1/4 could be the house/lord's colors.
Something like in Chivalry, where you have to have the colors of the faction you play, but you still get some freedom about the pattern, and some color on your tabard too.
Like Western Vladians would be mainly red, but with the lord's color on it, we could easily distinguish them from the battanian's, who would be green + another color. Obviously, the faction color would have to be the most visible, the main one, otherwise any red lord in the battanian army would look like a green vlandian lord.
I think this system would allow some consistence in a faction, but would also keep the lord color's, which is always cool to see our own colors on banners and armors.
This way, your battanian troops you recruited as a Vlandian, would still have some consistence in their armor scheme with the rest of your army too, and you wouldn't end up with some really ugly multicolor army..
Also, armor meshes, PLEASE... I want to see more than one poor armor model per faction for a tier. I want choice ! It's really good that we can add cloaks and pants/armor look like it's really customizable, though.
Sorry if the english isn't clear enough, I did my best