I think Daenerys Targaryen is going to win the Euro Millions call a truce and take everyone on a piss up in Benidorm because Winter is Coming.
P.S If you are lucky enough to own a Time Machine and no the real answer to the ending Please No Spoiler's
My personal thoughts is
The dragon queen and her dragons will die saving everyone else
Jon snow (Targaryen)
Who is the true king
Will inherit the iron throne, but he should in theory be dead so once he does he will die leaving it to the stark family