Revenge is best served cold for the ‘Devil Wears Prada’ part II is in the works. Lauren Weisberger is working on ‘Revenge Wears Prada: The Devil Returns’. The book will be approximately debuted in April 2013. Weisberger debuted ‘Devil Wears Prada’ in 2003 and was a bestseller. The book spent six months in the New York Times bestsellers list. The book soon became a feature film in 2006, starring Meryl Streep and Anne Hathaway.