That better bloody not be Wakanda, if they change a super-advanced African country into 'generic poor African country' I imagine that wouldn't do well for their image.
That being said, I genuinely doubt it's Wakanda.
Yeah on second thinking it's probably not, might be the African country where Ulysses Klaw was based or the country where the Hulkbuster scene happened and they're dealing with the fallout from it.