First off, while it is visibly apparent that no decisions need to be made about this right now, there will be a certain point in the future where audiences will expect (and demand) a Black Panther 2, if only to honor the important legacy that Boseman has set the foundation for. Marvel will have to be extremely careful about how best to approach the project without disrespecting Chadwick Boseman's memory.
Luckily, fans are lending the studio a hand, and taking to the internet to give their opinions on the matter. The first thing that becomes clear, if the flood of responses on Twitter is any indication, is that the notion of recasting T'Challa with a new actor will not be greeted well: as one fan tweeted, "Do not recast Black Panther. Let our king rest in peace." So, how should the story continue? Obviously, Marvel can't do an entire film with a digitally recreated Boseman, a la Carrie Fisher in Star Wars. While audiences could, perhaps, accept a scene or two of this, having a creepy, resurrected CGI T'Challa for the film's duration wouldn't be feasible. That means, most likely, a new character must be elevated to the throne, which leaves a few options. Okoye, certainly, would be a worthy candidate. M'Baku is another one, given that the first film made his interest in ruling quite clear.
However, a more clear path forward is already laid out in the comic books, and fans are already calling for the MCU to follow suit. After all, the structure is in place, and it actually makes a lot of sense.
