According to THR, Oscar winning actress Lupita Nyong'o (Star Wars: The Force Awakens, 12 Years A Slave) is in talks to star as (presumably) the female lead in Ryan Coogler's Black Panther movie alongside Chadwick Boseman in the title role.
Nyong'o's character is being kept under wraps for now, but apparently she will play T'Challa's love interest. Panther's most well known lover is Storm from the X-Men, but obviously that's out of the question. I'm not that big on my Black Panther comic history so perhaps you guys might have some ideas?
Marvel's Black Panther is set for release on February 2, 2018, with production aiming to start in early 2017.