Originally Posted by
mirage41
I will probably make certain factions playable "via" initial start factions. So for example if I add the new "Sultanate of Delhi" it would be playable via the Ghorid Sultanate. Basically in 1206 a rebellion by this new faction would emerge and you'd be given a question "Do you wish to join the Delhi Sultanate" and if you click yes the script would automatically transport you to the new Delhi faction.
Same thing could work for Ayyubids to Mamluks, Turks to Ottomans, etc.