What the hell, MY preferred version of Season 8 (and 9)! Let's all have a go!
I'll play! MY preferred version of Season 8 actually takes two seasons, the first devoted to the War between the Living and the Dead, and the second settling the rule of Westeros.
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Season 8: The War Between the Living and the Dead takes rather longer than one episode. We see skirmishes and drama as the Night's King marches south from the Wall, Dany and Jon take the dragons and try to burn a Minnesota-sized patch of forest in the hopes of slowing them down (not), and their love deepens what with being dragon-riders and they marry. Jamie and Brienne fall in love. Tyrion and Sansa get closer.
The Dead attack Winterfell and the living are able to hold the walls, they find themselves besieged as the Night's King takes the bulk of his army south. Bran tells everyone that Craster is responsible for the rise of the armies of the Dead, by giving them all his numerous sons, he created a critical mass of White Walkers and brought on the Long Night. So Little Sam the incest baby is used as bait to draw the White Walkers into a place where they can be fought, in a move that horrifies everyone, and Jamie tells everyone that Cersei is pregnant with an incest baby too, and maybe that's why the Night's King is going south. But no, the NK comes for Sam, there are mid-air dragon fights, and I haven't made up my mind quite how the NK dies yet, but he does, and duh, the Living win.
Danerys thanks everyone for their service, and says it's time to resume her campaign to reclaim her father's throne.
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Season 9: Cersei is taken out in the first few episodes, in some satisfying and dramatic comeuppance, Euron dies after losing his genitals somehow, and Kyburn is killed by Frankenmountain. Jon and Dany were gloriously happy as they fought the armies of the dead, so much so that Tyrion and Varys were worried she'd lost her focus, and she really does start to lose her focus as she and Jon disagree about the methods to use and their marriage starts to crumble, and THIS is when the truth about Jon's parentage comes out. Dany begins to fear that even if she does win, he'll end up as King and the real power and everything she's done will have been for nothing, and tensions between them grow as they conquer King's Landing and take out Cersei.
Jon and Dany are now seriously at odds, and all the other characters begin to take sides. Tyrion, Varys, the Starks, and Davos side with Jon, and Grey Worm and Meissandre are the only ones who support Dany (Jorah died at Winterfell). There's a lot of politics before Jon and Dany and their supporters finally go to war, and when Jon mounts his dragon for the final battle he has absolutely no idea if his dragon will obey him, or side with its "mother".
Well, he wins somehow. But he's had to kill his beloved wife, and he's inherited a throne he sure as hell doesn't want. He abdicates in favor of Tyrion and Sansa (he declares them legally married), as Tyrion is Cersei's next of kin and Sansa is his, so the heirs of both warring dynasties take the newly built double throne and officially declare that the War of Five Kings and Two Queens is FUCKING OVER. Bran takes on the rule of the North, Jon goes to live with Tormund, Gendry takes the Baratheon lands, and Westeros has two sane and competent rulers who, we hope, will eventually get drunk enough to produce an heir.
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The end.