Incredible chapter. Talk about showing the pack who's the alpha male! And if Jon indeed becomes "greyer," the people who'd disliked him for being the closest thing to a typical fantasy hero might warm up to him.
Oh, and it looks like Jon successfully stared down Thorne. Maybe that and Slynt's execution will just make Thorne become more covert in his opposition to Jon, but I wouldn't be surprised if some members of the Watch who'd previously backed the Slynt/Thorne duo or just disliked Jon were now more well-disposed toward the new LC.