“Enter India,” Elie Saab’s program proclaimed. The muse of his new couture collection, the notes went on to explain, was a turn-of-the-last-century Englishwoman on a trip to the subcontinent. “India is her backdrop and her inspiration for a new blend of formalism and ease, opulence and elementary lines.” That read like a real departure for the designer, who tends to prefer the reassurance of the familiar. But lately the Beirut-based Saab has been focused on change.