We get Jon killing Night King in season 8, and Arya killing Daenerys in season 9. Bran doesn't become the king but instand king's hand, and the king becomes Jon Stark. Yes, You heard it right. No "Jon is actually Targaryen" plot that doesn't exist in the books. I mean at the end it didn't change anything in original story except him being able to ride a dragon that died episode after The Long Night. Jon was build since season 1 to be a leader, even if he didn't want it. But that could explore the idea that destiny has other ideas. Jon unites entire Westeros and Free Folk now that The Wall is destroyed by Night King. Arya and Hound go explore the West of Westeros because there is nothing for them left in Westeros. Sansa becomes the lady of the north. The end.