I want to see Olaf hanging out with the dwarfs.
Horowitz: We do enjoy Olaf.

You mentioned how Elsa is misunderstood, rather than evil — she was being held in Rumpelstiltskin’s vault?
Horowitz: Yes.

And we’ll find out how she got to be there?
Horowitz: Yes. You know, there’s a backstory to how she appeared in Rumpel’s vault, and what she’s up to now when she’s walking out of that farmhouse that we’ll get into very quickly, most likely in the premiere. And in doing so, we very much want to honor what came in the movie. We’re not trying to redefine the character; what we’re trying to do is take this beloved character and fit her into our world.

Do you think Adele Dazeem may get to play Elsa?
Horowitz: We have an offer out to Adele Dazeem to play Elsa.
Kitsis: Listen, we handed in the cut on Friday, and Adam and I get two weeks off. So we haven’t thought about casting yet or anything. We’ll get into it. You know, I think the article that your colleague wrote last night, the 39 questions–

Oh, you guys read that?
Kitsis: Yeah. That pretty much is exactly, if he was in the brains of the writers’ room, that’s — all those questions were all the things we do.
Horowitz: Those were great questions.
Kitsis: We understand. We have children. We put a lot of consideration into everything we do.
Horowitz: Yeah — my two daughters are very excited, and they have a very high standard. So we’re going to do our best to meet that.

Going back to the other big thing that happened at the end of last night’s episode — Regina finds out that her happy ending is not meant to be, at least not yet. Does Marian’s return mean the return of Evil Regina?
Kitsis: Last night was the 66th episode [of Once], and we’ve seen a different Regina. She literally has grown. So the idea was never to revert her immediately back to the way she was, or she would have tried to rip Emma’s heart out in that moment. For us, it is, “how do this new Regina and this new Emma deal with something like this?” How does she deal with this crisis, and how does she deal with it with all the things she’s learned? Because we know that Snow White always felt haunted by the whole Daniel situation. So for us, that messiness is what we’re more interested in, instead of Regina just immediately going to her vault and figuring out a way to kill Emma.
Horowitz: Yeah — these characters have evolved for us over the course of three seasons, and now what we’re interested in seeing is how the evolved versions of these characters react to these new challenges.

I also had a question about Marian — I remember from an earlier episode Robin Hood said she had died of an illness.
Kitsis: I saw that — what episode are you referring to?

I remember that from “Lacey.” [Note: After our chat, I realized I had actually been thinking of "Quite a Common Fairy," in which Robin refers to losing Marian thusly: "I lost my wife a while back. And before that we almost never had Roland -- she was so sick... now she's gone and all I have... I can't lose him." That explains the confusion; because of the wording, it's easy to interpret Robin as saying Marian died of a sickness, though it doesn't actually confirm that's what killed her.]
Horowitz: Here’s what happened in “Lacey”: She was dying of an illness, and he was trying to steal the wand from Rumpel to cure her. And ultimately, he succeeded. At the end of Lacey, Marian is cured. He [later] says that he lost her eventually–

But he doesn’t say how?
Horowitz: Right. So what we’re hoping is that next year we can say how.

I was also wondering why you decided to have Snow and Charming name their baby “Neal” instead of “Baelfire.”
Horowitz: Honestly, because they’re in Storybrooke. We realize that Prince Baelfire sounds better, but I just felt like if he’s going to go to kindergarten, “Neal” might be easier to swallow. But it is Storybrooke; he could always be Baelfire in the Enchanted Forest.

Speaking of that: People seem pretty settled and happy in Storybrooke. Does this mean that the characters are content to stay there — that nobody’s going to be trying to get back to the Enchanted Forest anymore?
Horowitz: With the second half of the season, because we were doing the Wicked Witch, we wanted to tell the theme of “there’s no place like home.” The season started with Emma in Neverland, saying to her mother, “I feel like an orphan.” And at the end, she called them “Mom” and “Dad” for the very first time — she’s only done it before when she thought she was about to die. This was the first time she did it voluntarily. And it took 66 episodes to do that. So for us, Storybrooke is really the heart and center of the show. I think that is their home, and it’s about making that their home. Whether or not they want to try and go back — I think everyone seems pretty content right now. But “content” does not make for good TV. We’ll see what happens in season 4.

Do you see more world-jumping coming?
Kitsis: Right now what we would say is, for the first half of the season, we’re in Storybrooke — and we’ll see where the show goes. I don’t want to say anything definitive, but we are not looking to in, like, episode 3, go, “Oh my God, we’re now on Mars.”

Oh yeah, that great fantasy world Mars.
Kitsis: Yes, the great fantasy world — the Disney Mars.

So John Carter?
Kitsis: Yeah. No, we’re not planning on doing world-jumping in the first thing. But as always on the show, we like to show you different worlds. I would be let down if we don’t get to see Arendelle.