Latino Review reported that the Wachowski siblings, Andy and Lana, have already started work on a new series of the sci-fi films.
The site has been told that the filmmakers - who directed the original trilogy - "have already started the writing process with early treatments and outlines already turned into the studio".
It went on: "Warner Bros is desperate for a surefire franchise and will be making a push to have the new Matrix films ready to go up against any new Star Wars and Avatar films by 2017."
The site suggested the new instalments could be prequels.
The Matrix, starring Keanu Reeves, Carrie-Anne Moss and Laurence Fishburne, was released in 1999 and became a cult hit.
It was followed by The Matrix Reloaded and The Matrix Revolutions in 2003.
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