Lupita Nyong’o
Lupita Nyong’o’s Nakia was once part of the Dora Milaje, but then shifted to being a War Dog, i.e. an international spy for Wakanda. It was also noted in Black Panther how she and T’Challa used to be romantically involved, and at the end of the the movie, it looked like they were resuming their relationship. However, Nakia did not appear in Avengers: Infinity War or Avengers: Endgame, and because T’Challa won’t be involved in Black Panther 2, it stands to reason we won’t get to see the couple’s story properly concluded. Obviously it would be welcome for Black Panther 2 to explore how Nakia is dealing with T’Challa’s absence if something tragic has happened to him, but it would also be nice to learn what Nakia has been up to since Black Panther ended, including if she was among the people turned to dust by Thanos.