I'm anticipating that they'll dumb this down somehow.
There will be fukkery most def. Either there will be some low key dumbing down (I doubt it, but you never know), or there is no dumbing down of T'Challa and his supporting cast, and you'll see a strong, borderline irrational push back from the racists that most BP fans are quite used to by now.
imho, T'Challa himself has never been the main issue. The real issue is that how the mainstream will react when he not only is rolling with his inner circle, but also when he
and his inner circle are portrayed in a highly competent manner and proudly rep their country, even if they do so in a low key antagonistic manner.
There will be push back by default, simply because the majority of the cast is black. Bet that.