Having schemed all the way to Winterfell, Littlefinger finally met his match when Sansa turned upon him, rather than her sister.
Game of Thrones’ seventh season has, very quickly, come to an end, a few less main players still alive in Westeros.
Having almost single handedly started the War of the Five Kings, Littlefinger was quite a brilliant villain, and although dead, we could see him return.
Perhaps, then, Arya will eventually wear Littlefinger’s face to abuse these contacts, using them to et close to Cersei?