While previous comments from the studio tried to argue that the new Suicide Squad movie was not a sequel to the previous film, it seems the truth of the matter is that, while the new film will follow the first chronologically, it will tell a very different story by virtue of having mostly brand new characters. The sequel will also follow a second appearance by Margot Robbie's Harley Quinn, who will be starring in Birds of Prey before rejoining the Suicide Squad.