Last February, it was reported that Marvel Studios supposedly plans to finally recast T’Challa, following Chadwick Boseman‘s death in 2020.
The same rumour has continued to show up in different forms since then, and the consensus is that Toussaint/T’Challa II, the hero’s son, will be aged up and take his father’s place (one compelling possibility is him being plucked from a future timeline).
Leaked concept art from Avengers: Doomsday showed a version of T’Challa with F1: The Movie star Damson Idris’ likeness. The Russo Brothers have claimed that the artwork wasn’t representative of the movie they’re making, but the actor is widely viewed as the current frontrunner for the role.