For years, the fashion world has speculated about who would succeed Anna Wintour, 75, the magazine’s editor-in-chief since 1988 and a global icon immortalized by Meryl Streep in the 2006 film The Devil Wears Prada. In September, Wintour’s successor was finally named: Chloe Malle ’08, the daughter of actress Candace Bergen and French director Louis Malle, who has been working for the magazine since 2011, first as its “social editor,” then as a contributing editor, and for the past two years as head of Vogue.com. Wintour will remain as the chief content officer of Condé Nast and as Malle’s direct boss. But talking to the Times about her appointment, Malle, who concentrated in literary arts at Brown and once admitted “fashion is not one of my main interests in life,” said, “Placing my own stamp on this is going to be the most important part of this being a success.” She has said that she wants to reduce the print Vogue from monthly to occasional issues on special themes or moments, and on thick, glossy paper that makes them collectors items.