Lana Parrilla, one of the stars of ABC's Once Upon a Time, is speculating on what will happen with her character Regina after the return of Marian (Christie Laing).

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After Emma (Jennifer Morrison) brought Marian back to the present, Regina was heart-broken, considering Robin Hood (Sean Maguire) is supposed to be her one true love. Discussing this topic and what it means going forward, Parrilla spoke with Access Hollywood at Comic-Con:

"I don't know what's gonna happen and I don't think Regina does either," she said. "I think she's just gonna take some time to sit with this broken heart and figure out how to mend it."

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Parrilla said that she's not worried about Frozen's Elsa (Georgina Haig) coming into town, due to Regina having the power of fire.

"I don't think Regina's intimidated by this Frozen character," Parrilla said. "Elsa's power is snow. It's ice. Regina's is fire. I think she may have her beat." She added, "All [Regina] needs to do is create a fireball and melt this snow, so I'm hoping that's how she gets out of it."

There is no word on whether or not Elsa will be a main villain in the fourth season of Once Upon a Time, though the plot synopsis seems to suggest that she won't exactly be friendly to the citizens of Storybrooke. The plot synopsis for Season 4 states that Elsa will have something "in store" for Storybrooke, though it does not go into further detail.

Once Upon a Time Season 4 premieres on Sunday, Sept. 28 at 8 p.m. ET/PT on ABC.

Tags: Once Upon A Time television ABC