Today, a report announced that actor Matthias Schoenaerts has joined the cast of Supergirl: Woman of Tomorrow. He is expected to play the main villain, who is rumored to be Krem of the Yellow Hills. Ironically, many fans assumed Krem was the villain if the movie was a direct adaptation of the original mini-series comic (via Reddit).
Milly Alcock is already slated to play the title hero after possibly appearing in Superman next year. Jason Momoa is also rumored to appear as Lobo if the movie is directly based on the original comic. Craig Gillespie is slated to direct the film with a screenplay by Ana Nogueira. Production is expected to begin this January in the UK.
Supergirl: Woman of Tomorrow has no set release date
Source: The Hollywood Reporter