Not much is known about the plot of the reboot, but Davis will reportedly play a soldier-assassin on a mission. Sources tell Variety that she will be "one of the new faces of rebooted franchise, in the vein of Schwarzenegger's robotic assassin."
Tim Miller is directing and franchise creator James Cameron is on board to produce. He has said it will be a direct sequel to "Terminator 2: Judgment Day" (basically, the other movies don't exist in Cameron's universe).
Miller and Cameron are still looking for the lead star, someone who would take over for Hamilton's Sarah Connor. According to The Hollywood Reporter, they want a Latina character who would be the protagonist of a new trilogy.
The new "Terminator" movie is scheduled for release July 26, 2019.