Why don't you think the show would go to Skagos? Bran, Meera and Osha talk about going to the Bay of Seals in, I think, S03E08 (or near enough to the Red Wedding episode), to which Osha says it would take weeks or months to get there, but only a mere few episodes later, they separate, so she knows where to go, she's got Wildling/Freefolk blood, and it makes sense for show-her to do the same as what Manderley suggested he'd be informed of in the Davos chapters of ADWD.
I genuinely think that Rickon and Osha with show up either on Skagos, or having been there, and that it will be they who reclaim Winterfell. I think that it'll continue to be the subject of turmoil until that happens.
Oh, and I think we'll find that the Skagosi are the most like Starks of all people, more like the first men.