A three page letter has surfaced from George R.R. Martin to his publisher in 1993 revealing the original plot of “Game of Thrones” and what the author planned for it’s possible future.
The book retailer, Waterstones, took pictures of the letter though it has since been deleted. But this is the internet and nothing is ever really deleted so with some good detective work you can probably still find the pictures of the letter.
Regardless, it seems that while much of the original plot has been deviated from there are major bits that are (currently) still intact including five major characters that Martin had originally intended to survive the books since the very beginning.
:::: Spoilers for the book and show below ::::
Tyrion would have also been able to dethrone Joffrey finally with the death blow of Tywin being delivered by Jaime instead. Jaime would have then claimed the throne himself before blaming all his crimes on Tyrion who is exiled and decides to ally himself with the Starks.
Arya and Jon Snow fall in love with each other up at the wall where Catelyn and her fled. They refuse to act on it because of the whole incest thing along with his Night’s Watch vow of celibacy. HOWEVER!! Martin says that this changes because of Jon’s parentage is revealed. Is this another hint to prove a very popular theory about Jon Snow’s parentage? Tyron also falls in love with Ayra adding a love triangle where Jon and Tyrion also loathe each other. Though, Ayra does not feel the same way for Tyrion.
The Starks are forced out of the Wall and they end up meeting Mance Rayder where Cat meets her death at the hands of one of the Others (also known as The White Walkers from the TV show.)
Don’t worry, Dany is still in Martin’s original draft. She invades Westerns sooner but only after killing Khal Drogo out of revenger for the death of her brother Viserys.
The final paragraph of the letter was blacked out so the ending is still a mystery but Martin did identify that the five character to survive where Dany, Arya, Jon, Bran, and, Tyrion.
There is no indication whether any of this will happen in the real series or if these five character will survive the book series now, but we can hope.