By Rizza Sta. Ana (media@latinospost.com) | First Posted: Jun 23, 2014 08:17 AM EDT

This is a screengrab of the latest teaser for the Season 4 of "Once Upon A Time." (Photo : ABC)

Who will play Anna and Elsa of "Frozen" in the small screen? Fans of the movie would have to wait, at least until the latest season of the television series "Once Upon a Time" debuts, to know who has been slated to play the titular characters.

In his latest Twitter update, showrunner Adam Horowitz appears to be stumped as to whom to cast as Anna and Elsa. He shared a photo of a casting note that indicate which OUAT scene would the aspirants act out in their audition for either of the roles along with a caption that read, "The search continues."

The International Business Times said that one of the popular speculations about Season 4 of the fantasy series is that Elsa would be a major villain in the show. In Season 3, the show had Peter Pan (Robbie Kay) and Zelena the Wicked Witch (Rebecca Mader) as villains.

Moreover, it is expected that the television adaptation of "Frozen" would be different than the Disney film version, as the show is known for their own twist in narrating famous fairytales, Christian Today said. Although some are pretty excited with the idea, others are concerned that the small screen version of the beloved animated film is too soon.

On the other hand, the producers came out to clarify rumors about staying faithful to the ice queen character and her royal sister, voiced by Broadway thespian Idina Menzel and "Veronica Mars"'s Kristen Bell. The producers were quoted as saying, "For us, I think this is Elsa from Frozen. That was kind of the inspiration... Will there be our own elements put to it? Yes. Like all things like we do with Snow White or Peter Pan or Captain Hook, we take our own kind of twist on it but remaining faithful to the actual essence of the character."

In the meantime, IBTimes was able to secure some spoilers about OUAT Season 4.

When asked about Queen Elsa's presence in fictional Storybrooke, the producers said, "Having come from the past, is Elsa the next big villain on the series? She could be in the process of running away from Arendelle, seeking out revenge, or making sure all is well in the future."

On the question of whether the showrunners will be playing out another Emma Swan (Jennifer Morrison) versus Evil Queen/Regina Mills (Lana Parrilla) battle in the next season again, they said, "This is possible, unless they have to work together again to beat Queen Elsa. Fans saw Emma and Regina work together throughout Once Upon A Time Season 3 - first to beat Peter Pan (Robbie Kay), then to beat the Wicked Witch (Rebecca Mader). Emma inadvertently reuniting Robin Hood (Sean Maguire) with his wife Marian (Christie Laing), may not be the biggest issue in OUAT 4. (Marian is supposed to have died around the time Prince Charming (Josh Dallas) and Snow White fell in love at the Enchanted Forest)."

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