@Darcs I'd say Arya is clearly taking over Lady Stoneheart. They seem to be toying with this sense of familial inheritance, overtly passing Catelyn's strategic mind to Sansa and offering Arya her sense of retribution. It's not the books, that's for sure, but I will say that's not a bad thing. They are creating a sense of time repeating with Bran already, we also saw a lot of Ned in Robb and now in Jon as well. They're creating something interesting inspired by the source material.