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Will Emma & Co take a trip to Wonderland? Whatever happened to Maleficent?

Now that Once Upon a Time is back, TVGuide.com decided it's time for our ninth Lightning Round with the brain trust behind ABC's fairy-tale drama, executive producers Adam Horowitz and Edward Kitsis.

Lightning Round 8: Once Upon a Time bosses answer your burning questions

We grabbed your fan questions off Twitter and hit up Horowitz and Kitsis for a quick round of scoop, in which the producers had the option to answer, "Yes," "No" or "Can't Answer." Some of their answers, and possible non-answers, are pretty telling, so check them out below:

Will any of the Once cast cross to Wonderland or vice versa?
Edward Kitsis:
There will be a couple of the Once casters in Wonderland at various points, but it will not be like a traditional spin-off where the Drummonds drop Mrs. Garrett off.
Adam Horowitz: There will be some floating back and forth.

Will we see more flashbacks to when Regina (Lana Parrilla) was raising Snow (Ginnifer Goodwin)?
Kitsis: There are flashbacks to the time where she was living with Snow.

Will we ever see the Mad Hatter (Sebastian Stan) again?
We hope so.
Kitsis: We would love to have Sebastian Stan, but he's very busy.
Horowitz: He's fighting Captain America.
Kitsis: No one wants him back more than us. Sebastian knows we have an open door for him and we'll write him in to anything. It's just a matter of his schedule, and his schedule is pretty tight, so I don't know if we can work it out this season.

Once Upon a Time Postmortem: Will Emma & Co. be able to save Henry?

Will we see flashbacks into Emma's (Jennifer Morrison) life in the foster care system?
Horowitz and Kitsis:

Will we see the Sleeping Beauty/Maleficent story line?
We're definitely going to get a little more of Sleeping Beauty, but I don't think we have any plans in the first 11 episodes to do Maleficent and Sleeping Beauty.
Horowitz: We may get a taste of Maleficent (Kristin Bauer van Staten) on one of the shows.
Kitsis: Yes. We will definitely get a taste of Maleficent and we'll get to tell you more about Aurora (Sarah Bolger), Mulan (Jamie Chung) and Phillip (Julian Morris).

Will we get flashbacks to Neal's (Michael Raymond-James) life before Manhattan?

Will we get the history of the fairies?
You will get much more about the fairies.
Kitsis: You will get much more insight into how they are, how they live, what their deal is.

Will we get to see more of August (Eion Bailey)?

Will Rose McGowan be back as Cora?
I hope so. Every day all we do is think about how do we get her back? Absolutely. We definitely have to have her back.
Horowitz: There are plans in place.
Kitsis: She's so good.

Once Upon a Time bosses tease the dark trip to Neverland

Is Ursula someone we already know?
Can't answer.

Will we ever find out what happened to Belle's (Emilie de Ravin) mom or Hook's (Colin O'Donoghue) dad?
Maybe they're the same person. [Laughs]

Will we see the Darlings again?
Horowitz and Kitsis:

Could Pan (Robbie Kay) ultimately be a good guy?
Anyone could be a good guy.
Kitsis: Depends on how you look at it.
Horowitz: If you ask Pan, he would say he's definitely a good guy.

Before our next Lightning Round, be sure to check out our previous installments (Round 1, Round 2, Round 3, Round 4, Round 5, Round 6, Round 7 and Round 8). Share your Once questions in the comments section below or send them to @NatalieAbrams with the hashtag #OUATLR10.

Once Upon a Time airs Sundays at 8/7c on ABC.