I'm sure Chadwick Boseman's got some stuff lined up that he's looking forward to discussing more than another T'Challa-based interview. That said, I can't find anything yet; he's a pretty close-to-the-chest dude. I know his intended trajectory is to ultimately start directing films (he only got into acting because he wanted to understand how actors think for when he finally gets behind the camera) so I look forward to seeing what he takes on.
Michael B. Jordan's got a couple projects coming up that I'm aware of; Creed II and Fahrenheit 451 this year, then a Netflix series that he's producing that's basically about a single mother trying to raise a young kid with superpowers. (Like, all the superpowers if the trailer's any indication.) He's apparently also producing and voicing the lead character in a mecha action series for Rooster Teeth, the guys behind the Halo internet series Red vs. Blue.
Lupita Nyong'o's got that John Woo flick, but she's also got that zombie rom-com, a film version of Trevor Noah's autobiography that she's producing(?) and playing his mother in, the Dahomey Amazon film with Viola Davis, and the possible heist movie with Rihanna that Twitter breathed into existence.
Winston Duke is apparently set to co-star with Nyong'o on a Jordan Peele thriller coming out next year called Us. No clue what it's about, but hopefully the trailer comes out soon. Also, Danai Gurira is actually writing a screenplay for a miniseries version of Chimamanda Ngozi Adichie's novel Americanah in cahoots with Nyong'o (again), who is executive producing and playing as one of the lead characters. (I really should get around to reading that book.)
Florence Kasumba (my stealth favorite character and actor in the MCU, honestly) is voicing the hyena leader Shenzi in next summer's "live action" The Lion King remake, along with John Kani, who's voicing Rafiki. He's actually got a very long body of work in South African theater and film and I know he's still working, but you'll probably have to specifically look him up in South African media in order to find those upcoming projects. I know he came out with a film adaptation of one of his own plays around the time Captain America: Civil War was released.
