Darshi Representation in Bannerlord
I have seen a lot of posts about how Taleworld should create a Persianate Darshi culture in Bannerlord but I have a different suggestion and I think it would work better especially if the Darshi are to be a proper Persian analogue.
I suggest that instead of doing a map expansion they need to treat that Kuzait lands as some conquered Darshi land, similar to how the Khorazm/Transoxiana region was in our timeline. This already also works in game, because a lot of the Kuzait towns, villages and names are already influenced by Farsi language implying some connection both historically and culturally like the Turks and later Uzbeks had with their Iranian counterparts.
The way this could work ingame is to allow Darshi-culture recruits from Kuzait villages (either side by side Kuzait recruits or have Darshi exclusive settlements and villages). In Kuzait lands, you can also recruit more Darshi companions, as well as Darshi mercenaries and mercenary companies. Maybe have a special mechanic via a quest or character that establishes communication with an off-map Darshi empire with special trade mechanics, the ability to order Darshi troops from abroad, or luxuries like horses, clothes and weapons. This could even open up invasion scenarios where a Darshi host invades the map in an attempt to take either Aserai or Kuzait territory.
This would even allow for further development into creating "Chinese" or "African" offmap entities that turn Calradia into less of the whole world and more like a large region, somewhat compartmentalized, from a greater world like Europe was as a continent.