George R.R. Martin Not Concerned Over 'Game of Thrones' Ending Before Books
George R.R. Martin has spoken out in regards to any concern he might have over the enormous hit television show, which may possibly conclude before his series has been finished.
Despite making a concentrated effort in prioritising his writing above involvement with the television series and the media, Martin explained that 'anything is possible'. And while he stated that he has been concerned about it in the past, he simply said that 'worrying about it isn't going to change it one way or another'.
It seems that Martin, along with the rest of the fan-base, is simply going to have to wait and see what happens.
Source: (http://screenrant.com/game-thrones-tv-show-book-ending-winds-winter/)