The original 'Game of Thrones' outline has Jaime Lannister sitting on the Iron Throne - here's how it would have happened
Some notable differences included a love triangle between Arya and Jon Snow, a marriage between Sansa and Joffrey (and a baby), and Jaime Lannister sitting on the Iron Throne.
According to Martin's original outline, Jaime ends up killing everyone that comes before him in the line of succession in order to become the king of Westeros.
Here's the excerpt from Martin's original "Game of Thrones" outline describing Jaime's rise to power:
Jaime is, of course, not sitting on the Iron Throne in the HBO show, but is now standing alongside it while his sister and lover Cersei, who rules the Seven Kingdoms. But the series isn't over yet, and as Cersei continues to execute more and more violent and ill advised plans that threaten the destruction of King's Landing, perhaps the Kingslayer in Jaime will be invigorated once more?