Well, I'd love to see a Byzantine set as awesome as this one. Their clothing styles were pretty unique. Would be nice to see them looking more Mediterranean/Greek too. But I'm sure that'd take quite a bit of time... for now, I'd be happy if the emperor/empress had proper Byzantine crowns instead of using Catholic ones. Should be a simple request.
Making the clothes and darkening the skin is pretty easy. Time-consuming, but easy. The difficulty will lie in choosing clothing and equipment that is somewhat "time-neutral." Styles and equipment changed rapidly in some places, and in others, not so much.
Byzantine would definitely be good but I'm still a hardcore Saxon fan so that has to be a priority for sure! hmy:
My initial 'mod' for myself was adding the shaven-back hairstyle for the Normans, when I noticed it was missing. But, despite having a partially English lineage, I don't know much about the hair/clothing styles for the Saxons in the time period. My knowledge of English history is primarily late-12th Century onwards, and geopolitical/military as opposed to anthropological.