A new Black Panther 2 fan poster imagines Luke Evans as Namor the Sub-Mariner. Though Namor isn't confirmed to appear in the upcoming sequel, may fans are hoping he does. In the comics, Namor's parents are a human sea captain and a princess from Atlantis, making him a mutant. He's often shown as an antihero, though he has also worked alongside the Avengers, including Captain America. Namor also has a complicated relationship with T'Challa/Black Panther, which is one of the reasons many are hoping he'll show up in Black Panther 2.

A Namor reference in Avengers: Endgame has lent some credibility to this theory. In the film, Okoye and Black Widow discuss an underwater earthquake off the coast of Africa. However, Okoye says "We handle it by not handling it." This led many to assume she was referring to Atlantis and Namor. Co-writer Christopher Markus recently confirmed this, teasing, "Sometimes, you plant seeds. Sometimes, they grow." However, this doesn't necessarily mean Namor will appear in Black Panther 2, despite the character's apparent proximity to Wakanda; some are speculating Marvel will surprise fans by having Namor appear in Doctor Strange in the Multiverse of Madness instead.

However, if Namor does wind up debuting in Black Panther 2, digital artist zerologhy has an idea of who should play the Sub-Mariner. In a fan poster for the movie, the artist cast Luke Evans as Namor, including him alongside Black Panther stars Chadwick Boseman, Letitia Wright, and Danai Gurira. Unfortunately, fans are a long way off from getting a real poster, as Black Panther 2 won't release until 2022.