FAQ

Not just Black Panther 2, but almost every MCU movie have some sort of an alternate extended version. This was seen in the case of Doctor Strange: In the Multiverse of Madness (2022) where many previously unseen footages have resurfaced on social media, courtesy of stunt coordinators and VFX artists. Now, even if Nate Moore confirmed the existence of a director's cut, it is highly unlikely to ever be released as Disney never releases extended cuts of their MCU movies (minus the Spider-Man movies, as they are handled by Sony). Edit

Answer

T'Challa is revealed to have been died from a disease in the film. Shuri takes over the mantle for the final fight against the Talocans. In the post-credits scene, it is revealed that T'Challa had a son all along who was never brought up or even hinted at in the original Black Panther, and his name is Touissant, known as T'Challa II in Wakanda. Touissant may take over the Black Panther mantle in the future. Edit