Ryan Coogler has given a very non-specific response to the question of what is the future of T'Challa going to look like in the MCU. Appearing on the Breakfast Club podca

Marvel execs “freaking out” over Chadwick Boseman’s Wakandan accent being used throughout shooting shows they must have had no idea what a method actor they hired. But the late MCU star's deep dedication to T’Challa came in full swing to not only throw a punch like a Wakandan warrior, but speak like one as well.