I think the Intergalactic Empire of Wakanda deserves it's own book, while the main book focuses on T'challa and Wakanda Prime. That's what they seem to be doing with the anniliation tie-in and i'm fine with that. Also since T'challa has an Intergalactic Empire at his disposal, he's currently the ONLY world leader on Earth (maybe even in Sol) that has the ability to take on Planet Arrako which is currently being ruled by his Ex-Wife.