Black Panther’s arc is one of our favorite things about the movie: He’s driven so powerfully by vengeance and he gets to a point at the end of the film where he realizes what that drive has done and is doing to other people and he’s able to set it down and move forward. This idea that he would offer refuge to Cap, this guy he’s been fighting the whole movie, and Bucky, this guy who he’s been trying to kill the whole movie … is just a really cool arc for him to go through and it’s inspiring.

That was always sort of the idea for the end of the movie, and as the movie was being developed, it felt like it would be additionally cool to have that happen in Wakanda – a super advanced place. They’ve got something that he could go in. And also, it speaks to Panther’s arc. The person that he was out to kill early in the movie, he’s now nobly helping. And then, of course, that led organically to a cool moment, where Cap can go, ‘Thanks for doing this, but they’re going to come get you.’

For the most part, the post credits scenes in the Marvel Cinematic Universe have been either fun little moments that lead to a future installment or a gag that caps off the adventure that we've just finished watching. But in some cases, like that of Black Panther's mid-credits appearance in Captain America: Civil War, the plot actually progresses and a character gets to be set up in a particularly awesome manner.During an interview with USA Today co-director Anthony Russo commented on how Chadwick Boseman's final moments in the film drew T'Challa's story to a close, after a film of fighting against Team Cap. Russo's explanation was as follows:The storyline between the Black Panther protagonist and Captain America is one of the bigger arcs of, so showing T'Challa's growth as a person is something that works two-fold, as it also informs the events of the future solo film for the Wakandan superhero. But what's also spectacular about the final moments where T'Challa swears a new-found allegiance to Team Cap is the fact that he not only forgives Bucky, but we also see him further accept his mantle as a hero in the world of the Marvel Cinematic Universe. Meaning that by the time that Ryan Coogler and Chadwick Boseman make, the character will already have a firm foundation to backfill his origins around.Of course, the decision to house Bucky deep in Wakanda's jungle is also a great force of momentum to sustain the Sokovia Accords conflict throughout Phase 3. In a previous interview with our own Eric Eisenberg, Kevin Feige had this to say about theepilogue:With Black Panther being the last solo film released before, there's a possibility that Tony Stark and the rest of his remaining Avengers team might find Bucky being stashed in Wakanda before Phase 3's grand finale. If that's the case, then perhaps we'll see T'Challa face off against his former teammate, with the end result being the reanimation of Sgt. Barnes just in time to fend off the forces of Thanos.