Alien Nation is currently in the early stages of development, with an intended 2018 release date.
The original Alien Nation stars James Caan as a racist detective forced to team up with an alien played by Mandy Patinkin (Homeland) to solve a murder.
Nichols certainly goes for that with Loving, a film that is expressly about the moral injustice seen in laws against interracial marriage.
Alien Nation may be a bit more obvious, as far as drawing parrallels, but genre fair does tend to keep its themes fairly close to the surface.