Actor Vin Diesel has announced that he will return to the “xXx” franchise and the sequel will start filming in December.It was back in 2002 when Diesel took on the role of Xander Cage for the first time in action film “xXx”. However he didn't return for the sequel “xXx: State of the Union”.But now Diesel has reached out to his fans once again and announced on photo-sharing website Instagram that a new film is in the pipeline, reports femalefirst.co.uk.There is still no word on a director for the film, but John D. Brancato, Michael Ferris, and Rich Wilkes are on board to pen the screenplay. As well as being on the cast list, Diesel is also set to produce the film.He will be back on the big screen this autumn with “The Last Witch Hunter”, which sees him star alongside Elijah Wood, Rose Leslie, and Michael Caine.