Ever since she had reunited with Jon, he had been unflappable to almost everything, and this was the first time Sansa had seen him surprised. But even if this decree hadn't made its way north, she had no doubt that Jon would still be declared King. He was strong, strapping, and extremely capable, with Stark blood running through his veins. After losing two Lords of House Stark, a King and three heirs to southern politics and deception, nobody in the North would agree to bow down to the south ever again, especially with all the Houses that supported the Boltons broken in battle.