This week fashion-watchers have been girding their loins with the announcement of a potential sequel of “The Devil Wears Prada.” The return of Meryl Streep’s Miranda Priestly, the steely and cruel editrix loosely based on Vogue doyenne Anna Wintour, was met with cheers from the Chanel set. Original ‘Prada’ stars Emily Blunt, Meryl Streep and...