I think Dany, Aegon, and Sansa could rule, with Tyrion as Hand, Bran as supermage, Rickon to inherit Winterfell, and Jon as Sansa's wolf.
More loose ends-- Willas weds Shireen, and need some combination of Jaime, Margery, Tristayne, Rickon, Meera, Asha, Brienne, Val and Mance.