Como mencionado perfeitamente por Napoleon Wilson "Às vezes tendemos a esquecer que essas coisas foram filmadas antes de serem exibidas. Eles dificilmente poderiam ter acrescentado essa cena em questão de dias, mesmo que quisessem".

Para adicionar mais a partir de vox

David Benioff and D.B. Weiss must have been laughing to themselves so hard when we freaked out a couple weeks ago about Jon Snow not petting Ghost goodbye when leaving the north. There has to have been some "Oh, just wait for it, you whiners" in there somewhere. - Tasha Robinson (The Verge)

E programas como Game of Thrones não podem refazer essa cena tão tarde para uma cena de Direwolf exigida por CGI.

Até o diretor do episódio (David Nutter) explicou por que o adeus não era tão desejado pelos fãs:

“Since the direwolves are kind of CG creations, we felt it best to keep it as simple as possible,” said Nutter. “And I think that it played out much more powerfully that way.”

“Keeping Ghost off to the side, I thought that played out better,” he added.

Então, como eles podem fazer uma foto cara em um intervalo tão curto? Então meu senso comum diz não, não é possível.

Não

Joe Bauer, o supervisor de efeitos visuais, disse o seguinte, afirmando que Ghost está muito presente na temporada 8, já que não estava, podemos assumir que mais uma vez suas cenas foram cortadas, e isso provavelmente ocorreu desde o início.

Yes, Ghost will return—and not just for a tiny cameo. “Oh, you’ll see him again. He has a fair amount of screen time in Season 8,” Bauer said. “He does show up. . . . He’s very present and does some pretty cool things.” Bauer also noted that in addition to budgetary concerns, the show has sidestepped the wolves because it can be difficult to make supersized wolves look natural and non-cartoonish: “The direwolves are tough, because you don’t want to get them wrong. So we end up always shooting real wolves and doing a scaling trick with them. But the real wolves only behave in certain ways. I think that has something to do with why the direwolves are in the show, but they’re not maybe as integral as they are in the books.” Basically, this has been the Thrones approach to direwolves for the past few seasons.

_{Vanity Fair, Game of Thrones: What Ghost’s Season 8 Return Could Mean for the Endgame}