In a Q&A with fans George R.R. Martin’s editor, Ann Groell, mentioned that the books of A Song of Ice and Fire could possibly be “8 books for the 7 kingdoms.”
“I remember when he called me, years and years back, to confess that his little trilogy was…well…no longer a trilogy. He predicted four books. I said Seven Books for Seven Kingdoms. Then he said five books. I said Seven Books for Seven Kingdoms. Then he went to six. I said… Well, you get it. Finally, we were on the same page. Seven Books for Seven Kingdoms. Good. Only, as I recently learned while editing THE WORLD OF ICE AND FIRE (another awesome thing you must buy when it comes out!), there are really technically eight kingdoms, all having to do with who has annexed what when Aegon the Conqueror landed in Westeros. So, maybe eight books for Seven Kingdoms would be okay. Also, he has promised me that, when he finally wraps this great beast [up], I can publish the five page letter outlining the bare bones of the ‘trilogy.’”
For fans who want to see the world of Westeros expand this is great news. For those still trying to catch up (ME!) we need to speed read.
It would be amazing to have an eighth book, that’s if Martin can actually finish book 6. He’s mentioned that the story just grows as he writes and can never come to give it a finale. So all there is is to wait and see.
Source: Geektyrant