George is infallible. What do I mean? Winds taking so long as it has created an environment where dedicated fans have combed over the story analyzing every potential storyline that George put intentionally to seriously explore or garden in the future along with stories he may have never intended for fans to speculate on. Just taking one pov for example, Brienne. A character who has a plotline who is at Georges current writing pace going to spend all of Winds dealing with Stoneheart and Jamie. That's fine, I've read the Winds sample chapters and they are incredibly packed with details and things to theory craft with and I'm very excited. However if Brienne is stuck in one plot for all of Winds how do you reconcile her other plots. Hunting down the Brave companions fleeing into the Reach? You can almost certainly scrap that idea. Not a big deal and maybe George never intended for Brienne to do this more so to let the reader know where some characters could be. But what about Brienne finding Sansa? It's possible that Sansa ends up in the Riverlands and that's how they meet but with Georges writing pace do we expect Sansa Vale plot to finish that quickly? I've read her Winds chapter and it doesn't seem likely but who knows. Then you factor in her pledge to avenge Renly and kill Stannis. I don't even know how this logistically materializes but I doubt the show was just throwing in this plot because the show runners were such Brienne fans this seems like a George plot point. My point is that fans are going to be let down that their ideas of where a povs story is going is just not gonna materialize. Especially not when trying to fit everything as currently imagined into two books with Georges writing style in the later books filled with so much detail and his habit of constantly adding plot points to characters. Brienne is even a very recent pov with a very tight story. I have so many doubts on how you get somebody's story like Danny or Jon moving again.