Obviously we'll have to wait and see if the engine supports more factions, but if it does I'm all for projects to add more. Good luck.

First of all, in the various polls on this topic several nations you don't mention seem to be the most requested additions, in particular:

- Aragon (in Eastern Iberia)
- Bohemia (in Eastern Central Europe)
- Lithuania (in North-Eastern Europe)

Kiev (in Russia) Bulgaria and the Scandinavian nations also seem to be popular.

Irish
Ireland is another popular request. AFAIK it is now thought that Ireland was theoretically unified around 1000, but was somewhat fractious, being based around a complex and unique quasi-feudal system which made a single unified authority somewhat difficult. I think they also used an electoral-like system instead of primogeniture, which made establishing a dynasty difficult.

The case for Ireland as a faction is made in some detail in a similar project at TWC here.

Cilicia
This one could be very good, interesting idea.

Niger
Could possibly be very interesting, but would mean extending the map quite a bit southwards I think. If you're interested in Africa, Ethiopia might be worth a look as well.

The Cumans
Cumans/Kipchaks are another popular addition. I don't know very much about them but there do seem to be some knowledgable people around, I'd ask about it.

A project like this would likely be a fairly demanding enterprise though, I'd suggest maybe looking to cooperate with other mods interested in expanding the number of factions. Whatever you decide to do, good luck with it.

Antagonist