IN AVENGERS: END GAME, before everyone returns from the 5 year absence aka the Big Blink, Black Widow is shown directing the remaining Avengers to disasters that need their attention. At one point she asks Wakanda’s Okoye about an earthquake in the Atlantic that every Marvel fan instantly hoped was an Easter egg for Prince Namor of Atlantis aka the Sub Mariner.
According to our sources – the same ones who told us that the real Mandarin will appear in Shang-Chi and Taskmaster will be the villain in Black Widow, both of which were later confirmed by Marvel – the studio has chosen Namor to be the main antagonist of Black Panther 2. The specifics of his role are still a bit unclear, but like we said above, the sequel will see him trying to take control of Wakanda and become its ruler.
As with any scoop of this kind, we imagine Marvel may deny it publicly as they so often do, but as we mentioned above, our sources are usually pretty reliable, so we feel fully confident in their intel. And while things can always change in the development process given how early on it still is, for now, it seems that Namor will finally be making his big screen debut in Ryan Coogler’s Black Panther 2.