What do you believe George has in mind for The Winds of Winter, more specifically what will be different to change it up from the show? I'll go first:
In true penultimate episode fashion, the Winds of Winter will be where everything goes horribly wrong for our heroes, bringing about the narrative Darkest Hour:
Jon is resurrected as a wight, maybe even a super wight Night King with the kiss of a (PLOT TWIST!) female Other, to lay waste to the Night's Watch and weaken if further to the invasion of winter
Bran loses himself entirely as an individual, Bloodraven taking control for nefarious purposes as the chief intelligence of the Old God's hive mind
Arya will be torn between her desire for home and the relative safety of the House of Black and White, getting herself grievously wounded and ill after her disastrous fight to escape Braavos because her heart won't truly be in it.
Davos will come within an *inch* of getting Rickon home from Skagos, only to watch the boy painfully die in his arms
In a fit of desperation, Melisandre will burn Shireen as a sacrifice, and they lose anyways
Stannis will live just long enough to hear that all he did and said was utterly worthless, and will die an equally worthless death
Lady Stoneheart and the Brotherhood are gonna kill *somebody* who doesn't truly deserve it with Jaime watching
House Tyrell will perish by wildfire in the Great Sept of Baelor, destroying a huge portion of Westeros's order all for the sake of Cersei's mad and petty ambitions and vengeance
Tyrion's wretched demon luck will carry him all the way on the Golden Company's back to lay waste to the Seven Kingdoms on a check those empty mines can't cash, and will somehow escape cackling all the while as he finds some court to hide in while the whole continent goes up in flames
Only Sansa will escape relatively unscathed, working her way into the hearts and loyalty of the Vale houses with or without Littlefinger's help, and she will lead the charge to retake her home in A Dream of Spring
Yes, I know I am very very evil. Give me your counterpoints on what *you* think will happen.