It appears that Brienne, in an effort to keep her oath to protect Sansa Stark, is on a crash course with Stannis. Perhaps this is a hint that she will get a chance to avenge Renly in the books... or else it's a storyline that has been changed because it doesn't affect the ultimate end game. I'm starting to find that hard to believe, though, considering they've already brought Sansa into the thick of the Northern issues.
A scene that interested me, even though it was a very quick shot, was when it showed the serving women in Winterfell as Sansa was entering the area. Perhaps this is foreshadowing that the serving women will wreak havoc and help Sansa, just as they did Jeyne and Theon in the books. The only question is if Mance really does make a surprise return to lead them. I guess it wasn't so far-fetched as I initially thought. I thought it would be too much story crammed into one place, but it seems to be fitting well so far. We just need to see a couple of episodes of things getting progressively worse for Sansa, then we need to see Reek become Theon again, and then we need to see the valiant savior and his loyal troop save the day.
I also wonder if Tommen and Margery already consummating the marriage was a simple change to make things more clear for the show watchers on the "Cersei vs Margery" battle, or if it's a sign that perhaps an heir to Tommen's throne may come into play in the books at some point.
