These are the DLC which will add features to the mod if they are active.
Sword of Islam - Ploygamy for Valyrian religion
Sons of Abraham - Faith of the Seven flavour stuff
Rajas of India - Flavour events for the far east, special units
The Republic - Play as patrician characters in the Free Cities
Old Gods - Iroborn, Pirates, can raid and navigate rivers, also several flavour events
Legacy of Rome - blind and castrate prisoners
African Portraits - Summer Island, Basilisk Islanders use these
African Units - Summer Island, Basilisk Islanders use these
Russian Portraits - Ibbenese use these
Mongol Portraits - Jogos Nhai, N'Ghai use these
Addiontally the customization DLCs are all compatible if you wish to use them.
Sunset Invasion - The only thing this DLC will add is the possibility of a late game Aztec Invasion