Fans of the incredibly popular Yves Saint Laurent Cabas ChYc Bag, you can breathe a sigh of relief: Hedi Slimane, Yves Sain- oops, Saint Laurent Paris‘ new creative director, is sticking with the brand’s most successful handbag. Women’s Wear Daily has an illuminating new look at what will change (lots!) and what will stay the same (not much!) going forward…