When does Sherlock Holmes return?

Robert Downey Jr. stars as Sherlock Holmes as the character of the same name. The film, set in 1890, follows eccentric detective Holmes and his companion Watson investigating the crimes of Lord Blackwood, a mysticist who has seemingly risen from the dead. Rachel McAdams stars as Holmes' former adversary Irene Adler. A sequel, Sherlock Holmes: A Game of Shadows, was released in 2011.