Brendan Sanderson has already said that he won't touch the Game of Thrones series. I can see why - it's quite different, stylistically, but he has religious concerns, which I respect, for not doing so: https://www.reddit.com/r/asoiaf/comments/4uwjq9/comment/d5vj...
> But the point is moot, as I wouldn't say yes to finishing ASOIAF, if asked. (And I don't think they'd ask me.) I'd respectfully decline. I wouldn't be right for the job for many reasons. I wouldn't want to put in the content that the series has, and part of that is due to my religious faith, part of it is just who I am. I don't shy away from difficult material, but I prefer not to get explicit. Honestly, when I read it in George's work, I often just cringe. I don't think it fits in prose; I think it looks tacky. But that's almost 100% due to the my religious leanings. I realize that others don't read such scenes in the same way as I do.