Marvel Studios President Kevin Feige has addressed why Lady Sif doesn't appear in Thor: Ragnarok. Well, sort of.
Taika Waititi's film, the third chapter in the Asgardian-fueled franchise, includes a number of Thor's supporting characters from past installments, such as Heimdall and the Warriors Three, but early screenings confirmed Sif's absence. In an interview with ScreenRant, Feige addressed the issue of the god's whereabouts, noting that it was a pretty popular question. "You're the second person to ask me that question today, and I will quote Maz Kanada from Star Wars: The Force Awakens: 'That is a good question for another time.' Is that the quote? It's pretty close to that."
Even before it was confirmed Sif doesn't play a role in Ragnarok, audiences noted her absence from the film's trailers. For months, fans have been speculating over Sif's fate considering her roles in the first two movies, as a childhood friend of Thor and someone who shared an unrequited love for the Odinson. Many were hoping when it was announced that Natalie Portman's Jane Foster wouldn't return Sif's status would be elevated in the film, not just to Thor's romantic interest, but as a major Asgardian, as she was last seen gifting the Aether to the Collector in the post credits of Thor: The Dark World.
However, it appears that the film's role of main female protagonist has gone to Tessa Thompson's Valkyrie instead, leaving fans wondering what's next for the Asgardian god. Sif has appeared on Agents of S.H.I.E.L.D. in the past, so there's the possibility she may pop up on television again, or perhaps she'll join the battle against Thanos in Avengers: Infinity War. Feige's response, while vague, does indicate there are plans for her at some point in the future -- now, it's just a matter of waiting to learn what they may be.
Arriving Nov. 3, Thor: Ragnarok stars Chris Hemsworth, Tom Hiddleston, Cate Blanchett, Idris Elba, Jeff Goldblum, Tessa Thompson, Karl Urban, Mark Ruffalo and Anthony Hopkins.