Resurrections have happened several times on the show, such as when the Hound killed Beric Dondarrion. Turned out Dondarrion gets killed more times than Kenny on South Park. Thoros resurrects him, and Thoros is a priest for the lord of light... same as Melisandre is, and she is there where Jon Snow is.
Give us back the Hound. His pleas, “Kill me!” broke my heart.
I forgot about Dondarrion. In the book he is much more emphasized. And when he comes back he is not as strong. Melisandre was seen passing by when Snow was killed.
Side note, also in the book, much more is made of him possessing the body of his direwolf. Maybe that will be a way to reincarnate.