And everybody would be happy - except Others,Drowned god,Kadath and GRRM.Who would be weeping over his grimdark masterpiece turned into cannabis paradise.
Indeed,i should think about that.He is like doctor from old joke,who said, that operation was succed,but patient died.Westeros could not survive his goodwill.
He would deal with Others,deliver cyvilisation to free folks, and there would be no need for Jon Snow.
Cersei would rule over Westeros,and Sauron over wildlings ?