Still, all of that could have been avoided.
Doran suports Dany and sends Trystane, to marry her. He dies of gout, Trystane is burned to crisp, causing Nymeria Sand to rally Dorn for independece with Cersei against Dany.
Varys could have been hiding, with Ilyrio still acting as a frontman for Daenerys
Jaime goes to dorne, gets Myrcella, and when they come back, Cersei blew up the sept and everythig is spiriling out of control. Myrcella, new queen sends jaime away, and tries to imrison Cersei again. Cersei orders the mountain to kill Myrcella. Jaime returns and kill Cersei as Dany burns king`s landing.
Sansa could still marry Ramsay, but she actually manages to manipulate him, by basically playing his new Myranda, and cause him to turn on his father, and later kill him as well.Brieanne tries to save Sansa, but she intead orders to sieze them and torture podrick, (thus horribly twisting Brieanne persepctive, who swore an oath to protect Sansa, who is now a monster)
Littlefinger Invades the Riverlands, and Sansa Marries Sweetrobin. Maybe add tension with her imrisoning Rickon to prevent nortehr lords from declaring him a king.
In the Riverlands, Jaime is captured by Brianne, who takes him to Sansa, who while trying to play Daenerys, presents him to her as a prisoner. He is freed by Tyrion.
After Failing in Mereen, betrayed by Tyrells, Dorne and Euron, and viewed as a foreign invader with a dothraki army, she is mad enough to just Burn king`s Landing.
I really don`t see Jon and Dany`s romance blooming.
In the final Season, the White walkers breach the wall and get as south as the Reach, and then Night king is defeated but white walkers don`t die with them.
For the next 10 years the humanity is fighting their way up north again.
In Epilogue Sansa and her children sail up to Winterfell(Shitload of snow melted), finally coming home for good.
