Once Upon a Time bosses on the future of the fairy-tale drama 

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In the wake of the news that the ABC fairy-tale drama has been renewed for a sixth season, it seems only fair to wonder whether executive producers Adam Horowitz and Edward Kitsis have an endgame in mind.

famous ABC series on which both Kitsis and Horowitz also worked. Not only do the island-mystery drama and fairy-tale series draw thematic parallels, but they also share a fair number of actors — Lana Parrilla, Emilie de Ravin, Elizabeth Mitchell, Rebecca Mader, Alan Dale, and Jorge Garcia among them.

’s third season finale, ABC announced that the series would conclude with three truncated seasons, allowing executive producers Damon Lindelof and Carlton Cuse to set an end date for their critically acclaimed show. With that in mind, are the powers that be at

,” Horowitz tells EW. “There are some similarities in our storytelling — that’s where we came from — but

was a much more closed-ended show that needed that kind of ending.”

’s ratings have been on the decline, its Live +7 numbers tend to give the show a bump in the coveted 18–49 demo, so there’s still a fair-sized audience tuning in to find out what happens to their favorite characters.

With an endless supply of characters at their disposal,

has also been able to grow each season. The series has deftly expanded from beloved fairy-tale characters to stories about Oz and Frankenstein to new faces in the Disney pantheon, including characters from

. All of which stands to reason the show could go on for years to come.

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Though, the producers do have some semblance of an ending in their back pocket. “We certainly have endpoints in mind for many of our characters and where we want the story to go and finish up, but we have different ways of getting there,” Horowitz says. “We’re not, at this point, setting a specific end date for the show. But what we are doing is taking the luxury of knowing we have another season to be able to continue our long-term planning.”

bosses are not looking at season 6 as the end. “No,” Kitsis says. “We could change our minds in a few months, but right now we’re just trying to get out of [season] 5. We have plans for season 6. Listen, there’s a time and a place where, at a certain point, characters either need to find their happiness or not, and we are aware of that. We’re just not ready to answer that question yet.”

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