By Anna Moloney A sequel to The Devil Wears Prada is finally in the works, but how close will its plot mirror the reality of Vogue’s decline? Nearly 20 years on from the original blockbuster, a sequel to The Devil Wears Prada is finally in the works, with Meryl Streep and Emily Blunt both on the billing. However, unlike the first film, the world of glossy journalism is set to be shown as, well, slightly less glossy. No longer the cool puppet master of the first film, the sequel will instead follow Runway editor-in-chief Miranda Priestly through the battlefield of modern journalism, as she batt…