Plot details for The Matrix 4 are still being kept firmly under lock and key by director Lana Wachowski, and it'll more than likely stay that way right up until the movie releases simultaneously in theaters and on HBO Max at the end of December. The recent sizzle reel promoting the streaming service's huge roster of upcoming titles may have teased that the fourth entry in the franchise may have been officially titled Matrix, but that's as close as we've gotten to an official update on the project for a long time.