Monarch living in the shadow of his father, who has many internal enemies and rivals to the throne, and who is just now revealing a modern and technologically advanced African nation to the rest of the world? Politics has to be a part of it for this movie to not just be "black batman." Wakandan/American politics shined in Priest's run.
Movie Wakanda needs to be given the Kun Lun treatment. I think having it as a nation-state somehow otherwise hidden wouldn't work. Play up the mystical aspect, throw in African lore or something.