BLG writes: “Total War Warhammer 3 brings to the table eight new playable factions. Thats already more than what most grand strategy games let you access but, believe it or not, its just the beginning. Once the Immortal Empires map launches, there will be several dozens of factions to choose from. Provided you own the first two entries and their DLCs. Especially the Total War Warhammer 2 DLC packs.”
Source: N4G PC Total War Warhammer 2 DLC Buying Guide to Prepare You for Immortal Empires