Here’s a Once Upon a Time question. Do you see this being the final season? And if so, can you give them an end date to work with like, say, Lost had?
Yeah, so [executive producers] Eddie Kitsis and Adam Horowitz, as veterans of Lost, are fully conscious of all these things. They came in and sat with us recently to talk about what their ideas would be for a season 7 and we’re in conversations about that right now. But I think this is absolutely a show that is beloved to us and if and when we decide to end it, we want to do it the right way and really give the fans the ending that they deserve. But I will say that Eddie and Adam have some really good ideas for future seasons.
My response: The writers did mention their original plan of 7 seasons, so I always expected 7 seasons. Noone doubts that much (although I see questions of full or half season, but I think that's trivial given the firm standing of Once). Noted that Channing said seasons with an "s". So, we could perhaps expect more, but it's also good to know that the writers have ideas for future seasons (at least two, given the "s"). Hopefully they'll develop them some more with nice continuty and do what their best.
Link: http://ew.com/tv/2017/01/10/abc-scandal-free-fall-lineup-once-upon-time/