At the core of the new release is the brand-new Arcane Journal for the Empire Of Man. This is not required to play the Empire Of Man in Warhammer: The Old World (the full rules are available already in Forces Of Fantasy) but this will give you additional rules for playing more involved games. You'll find new Armies Of Infamy for the City-state of Nuln and the Knighty Orders Of The Empire as well as new special characters, units and magic.
If this has you buzzing to dive into the Empire Of Man then you'll be able to get your hands on the Empire Of Man Battalion which could form a good starting point for your army.
