Man, back while season 8 was in progress I was all "they've basically set it up to be the seven Queendoms with Ellaria/Cersei/Dany/Sansa/the Greyjoy whose name escapes me/two other random whoevers at the helm still endlessly warring but bound together against the winter and they still fucked it up"
Just... do that. It writes itself. If you have to be sadistic, just off Arya or something and watch the Internet meltdown.