I believe that a couple of sets of Byzantines would sell quite well if folks simply knew more about them. At the height of their power, the Byzantines had faced several major powers in the region. Arabs, Normans, The Rus, several nomad tribes, and Turks. I have studied Byzantine history in depth now for nearly two decades and the stuff is brilliant reading if one is interested. For a thousand years almost the Empire stood against all enemies and weathered them each in turn. Ultimately it boils down to which period or periods would get a produced. The Justinian period was certainly busy with the re-conquest of so much of the former empire. I believe though that we could still use Late roman figures for this period (just my opinion). For me the real period of Byzantine greatness stemmed from about 900 till 1100. Here you get the battles with the above mentioned factions. I would love to see them produced but know better than to get my hopes up. Hope you guys are all well and weathering the plague.
Cheers from the Old North State. Ole Ben.