If you've been keeping up with the news regarding the fourth season of the show, then you probably know that Jon Snow's story will be changed from what unfolded in the books. Not as much as Theon/Asha's story is being changed, but still to a slightly unsettling degree.
0:47 of this video shows a wildling raid, presumably on one of the towns that Styr and/or Tormund's host loots on their merry way to Castle Black. At first I thought that this might be the route at the Battle for Castle Black (as the shot that we get involves a dude being grabbed from behind and throat-slashed), but the scene takes place during the daytime, and I have reason to believe that that is a change the show will not make. 0:48 of the trailer shows Ygritte along with a bunch of other wildlings as they move closer to the Wall. This, along with the scene that took place a second prior, leads me to believe that we may get an "Ygritte POV" this season, which could be all kinds of epic, and a welcome addition to the series. Then, at 0:50, we get a scene of people on horses moving through an ice tunnel. Aside from the possibility of Bran and Co. travelling through the Wall at the very beginning of next season, I have no idea what this might hold. It could even be Donal Noye and friends going to fight Mag the Mighty, who is shown a couple of seconds later barging into a gate. Once again, this would be an awesome addition as Noye taking Mag down with him via throat-stab is a favorite "fist-bump" moment for a lot of readers.
However, we also get a flash of dialogue where Jon says: "If the wildlings breach the Wall, they'll roll over everything and everyone..." This sounds an awful lot like a battle speech, which might mean that Jon is in command when a particular battle takes place, which means Donal Noye won't be in command, which means that there probably won't be a Donal Noye, which means fire and blood. I'm not saying the we won't get Captain "Too Badass To Not Kill Giants With One Hand While On The Verge Of Death" (and I am far from being an expert authority on anything, so don't worry too much), but leadership being quickly pushed on the hero is generally just something that happens in fiction a lot, and definitely a possibility here.
The truly alarming change comes at 0:57, with Rast placing a baby in the snow for the Others, which point to more focus on the traitors who killed the Old Bear. Why is this alarming? Shouldn't we be welcoming this change, as it makes Rast an actually meaningful character and not that asshole who got some unlucky spear shoved into him? But at 1:22, we see Jon and a bunch of other crows charging towards Craster's Keep (it's definitely Craster's Keep, notice the trees and the stakes that have been shoved into the ground) and he swings Longclaw at some unlucky bastard who happens to be wearing a black cloak. Not to mention the footage shown in the second trailer, where Jon says: "He was betrayed by his own men, all we can give him now is justice." (I will say that this line is somewhat refreshing in the way that Jon doesn't seem to be in charge, so we might still get Donal Noye after all) This indicates that Jon is not only going to defend Castle Black, but take down the rogue crows as well. Which is all fine and good... if this was happening in the fifth season. I don't mean to be cynical, but I'm starting to get the vibe that Jon's Season 4 story arc is going to be kind of overcrowded. Why do we need a diverging Craster-Vengeance subplot when we already have the massive Wildling plot that has been foreshadowed and given background since Episode 1 and is supposed to climax this season. A Sam-Gilly relationship subplot? Fine, as it doesn't change the main focus of Jon's story. A Jon-Sam relationship subplot? Fine, as it doesn't change the main focus of the story. A Jon-Rast vengeance subplot? Not fine, as it involves Jon going miles out of his way to kill a bunch of non-threats when the shield that guards the realms of men is about to take a knife to the back.
What do you think of these new subplots and POVs? Did you find any more important info? What other changes do you believe will take place?