Come September, you won't need a single Total War: Warhammer game to play its colossal, trilogy-spanning Immortal Empires campaign

Yesterday we finally got to see a full reveal for everything arriving in Total War: Warhammer 3 's Lords of the End Times expansion and it's a whole heap of content . We've got Nagash and his undead legions, a fully-fleshed out Boris Todbringer and Middenland, plus the Glottkin's putrid hordes, and…