First of, I ****ing love this mod. This is one of the like 3 mods that can actually make me play for longer than 1 day which is super. I have a few suggestions too
-conquering acztaoc cities and calradianize them (e.g give them calradian names, calradian city looks etc.)
-A Comanche like (Look them up if you don't know them, they were equivalent, or maybe better than the Mongols>) tribe in the mainland? Also, look at the suggestion below me. The Comanche could initially just start without any horsed troops, but when the event triggers you'll have really skilled horse archers and lancers but with weak armor.
-An event that triggers after like 20 - 30 weeks into the game which will unlock a new troop for the natives, that will be on horseback. Just like how the natives irl got horses from the colonizing europeans.
-Rocket launchers (This would prob be overpowered and boring tho)
-This is actually a question, will we have mortars?
-I noticed that there was a pretty big area to the south of the Holy Land. What if you make a SE-Asian/Indian nation there? Maybe even a few smaller nations so that there will be strive there but it will take a while for the sarranids to actually get real trouble with them. This will give multiple ways for expansion for the sarranids, and a big threat to them too. I saw a few lovely textures online from Vietnamese weapons, which looked freaking amazing. And maybe the developer of Suvarnabhumi Mahayuth could give you some of the textures. (You can say the land if you look south of the HL a little bit crooked you'll see the land)
-A holy mountain for the Tengriists where they can pray. Like the many sacred mountains in the traditionally tengriist areas.
P.S : A little question, does it take a while for buildings in a colony to be built or are they immediately built? I'm having trouble with colony developing in V.3.0.2
https://forums.taleworlds.com/index.php?topic=190595.0 (These are a few vietnamese weapons, not textures tho.)
https://forums.taleworlds.com/index.php/topic,198052.0.html (some textures)