I've commented on the one major thing that didn't appear in F&B on Reddit, but figured I should mention it here as well.
It's indicated that "every castle" in Dorne was burned thrice in the Dragon's Worth, including Sunspear, and that Visenya had burned it earlier. This, however, was removed from TWoIaF after we pointed out to George the issue that the "ancient" Sandship and so on don't show any sign of the dragon-burning damage seen in Harrenhal and mentioned in other instances. George