IamLEGEND1:
it was just light striking the wolf head at the right angle, nothing more.

Bran can't war into inanimate objects.

phensbassey:
As the camera focuses on Longclaw, his sword, Jon can be seen tapping his hand out of the water.
But something happens in that moment, I can't be the only one who noticed this about Longclaw.


Yup, Longclaw's eyes popped open. See?


It can't just be accidental, can it?


Valyrian-steeled Longclaw is the bastard sword that belonged to House Mormont. Jeor Mormont, as Lord Commander of the Night's Watch, gave it to Jon Snow, who served as his steward until Mormont's death. Though Longclaw was taken from Jon's dead body, he got it back after returning from the dead.


Fans on Reddit stressed that Longclaw's eyes are just a transparent piece of crystal that fills out when the hand is behind the handle. So the "opened-eyes" effect is just a reflection of Jon's hand hitting the ice. What a bummer.


Others argued the hand does not reach that far to create a reflection. Is that just a drop of water? An optical illusion?
Or could it be Bran warging into Longclaw? Who knows...One thing's for sure, it's really cool.