‘Once Upon a Time’ season 4 spoilers: The magic begins!

“Once Upon a Time” fans, commence your celebrations now: The ABC show is officially back at work, and they will be doing their best to create a season 4 worth remembering.

This is a show that has always been somewhat secretive about their filming dates, and we assume one of the reasons for that is to avoid foot traffic and onlookers trying to disturb some outdoor filming environments. However, you can take Adam Horowitz’s Twitter message today that he was “on set” as proof that things are getting underway in British Columbia.

There are many mysteries that lie ahead in the next 22 episodes, but we at least know that the first half of them will have a heavy “Frozen” theme. Anna, Elsa, and Kristoff have all been formally cast, and given that this show never likes to give every secret away in advance, it would not shock us at all if some more names end up coming out in the next couple of months … or at least when the show has its Comic-Con presentation, given that there have always been some surprises there.

So what about the characters you already know? We have to imagine that things between Emma and Regina are going to be particularly icy (not in a “Frozen” sort of way, though) when the show returns thanks to Emma unknowingly bringing Robin Hood’s love Marian to the present-day world. Meanwhile, Rumpelstiltskin is going to eventually have some explaining to do when it comes to Belle, and Snow and Charming will still be getting used to their lives as new parents.

Are you just as excited for the new season as we are? Let us know all of your thoughts now in the comment box below, and to get some further TV magic sent right to your email inbox, sign up for our newsletter today.

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Photo: ABC