I don't think he's going to change his books much just because some characters are cut from the show. He knows they are separate things and will do whatever he had already planned. Feast and Dragons introduced way too many characters, and the Arianne stuff pretty much came to nothing . We can now deduce that the Griff stuff isn't going anywhere either. Sure, Arianne is more important than Trystane in the books, but I'm not sure how important the Dorne storyline will be in the end anyway. Cutting down the Dorne storyline, and basically removing the Greyjoy one, are necessary changes to make this show work. They need to seriously cut some of the other pointless shit in Meereen too. If they went along with all of these side stories, we wouldn't have enough time with the established characters that we care about each season, and seasons 5 & 6 would become a real chore to watch. D & D are doing what Martin should have done, they're keeping this thing tighter and more focused. I mean FFS, Dragons had 31 viewpoint characters.Why am I not surprised that Martin won't have the next book out before 2016? He spent 11 years pissing around writing two books that should have been one.