The character seems a little similar to the Phantom, with the inherited title and skin tight outfit and fictitious African country
Bangalla. I wouldn't accuse Jack Kirby of borrowing, or even Stan Lee these days. Besides, there were also other Phantoms in 1939, not to mention the one who in 1963 first stole the Pink Panther diamond from the Indian/Arabic nation
of Lugash. Maybe next time a Pink Panther sidekick can diversify the overwhelmingly hetero cast.
The Avengers 3 MacGuffin, the Soul Stone, could be in some such diamond. Since the trailer shows scenes
in Zamunda maybe it's in a bottle of Soul Glo.