Once Upon A Time has no intention of ending after six seasons like monster serial LOST.
Speaking to EW, EP Adam Horowitz confirmed there are no current plans to end the fantasy series any time soon:
“It’s a different thing than Lost. There are some similarities in our storytelling — that’s where we came from — but Lost was a much more closed-ended show that needed that kind of ending.”
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.”