Ned Stark = broke vow w/ AD = dead
Robb Stark = broke vow w/ JW = dead
Jon Snow = broke vow w/ Ygritte = dead but some believe a sorceress who admits multiple times her “magic” is a sham will resurrect him
Bran Stark = in a tree
Rickon Stark = feral orphan
Arya Stark = psychotic assassin
Sansa Stark = broke vow w/ TL = probably carrying RB’s baby
Ned Stark = broke vow with who is AD? Time will tell if Ned really broke his vow to Caitlyn or not.
Jon Snow = the Night’s Watch vow is to take no wife, hold no lands, and father no children. Having sex with Ygritte without marrying her was a bit of a loophole. And the vow “shall not end until my death...”
Melisandre’s magic does work sometimes - that shadow creature she gave birth to was real enough to take out Renly. I think her vision of Winterfell was real, but hasn’t happened yet. Presumably, she has some of the same powers as Thoros.
Rickon and Osha were last seen headed towards Last Hearth, the seat of House Umber. Greatjon Umber was one of the few Stark bannermen who was not at the Red Wedding, so he and his house are presumed to still be alive. If Rickon and Osha can make it to Last Hearth, they might be able to do something with the feral boy.