Jennifer Morrison, Ginnifer Goodwin and Josh Dallas

Will Emma get her powers back? Is Zelena gone for good?

With the Once Upon a Time finale upon us, TVGuide.com decided it's time for our 13th Lightning Round with the brain trust behind ABC's fairy-tale drama, executive producers Adam Horowitz and Edward Kitsis.

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We grabbed your fan questions off Twitter and hit up Horowitz and Kitsis for a special finale edition of Lightning Round, 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. Check them out below:

Will we ever find out why Zelena (Rebecca Mader) needed Regina's (Lana Parrilla) blood?

Edward Kitsis: I believe it was to confirm it was her sister and to deal with the blood lock.

Adam Horowitz: That may be a case of something that we answered, but we didn't answer it clearly enough for people to get.

Will we see more of the missing year?

Kitsis: No, we are done with the missing year at least for this year.

Will we see how Hook (Colin O'Donoghue) found Emma (Jennifer Morrison)?

Kitsis: We will find out how Hook found Emma.

Horowitz: We have not forgotten that little tidbit. That area of the missing year is explored—

Kitsis: Without us flashing back to it.

Horowitz: It'll make more sense when you see the finale.

Will Emma get her powers back?

Horowitz: Can't say.

Kitsis: Oh boy, watch live!

Was Rumple's (Robert Carlyle) proposal to Belle (Emilie de Ravin) just a distraction?

Kitsis: No.

Horowitz: It was genuine.

With Maurice (Eric Keenleyside) returning in the finale, will we learn any new information about Belle's mom?

Horowitz: Not this year.

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The lights flickered when Snow (Ginnifer Goodwin) and Charming's (Josh Dallas) new baby was born. Will that be explored?

Kitsis and Horowitz: Perhaps.

Love the redemption arc, but is Regina totally off the hook for all the things she has done?

Horowitz: No.

Kitsis: Of course not. Every day, we have to strive to be better people. Some days we give into weakness and sometimes we give into strength.

Will there be more death in the finale?

Kitsis: Yes, there will be death. It's just a matter of whether or not you'll care. It could be a major character or it could be Henchman No. 4, but death will be had.

Is there more to Dorothy (Matreya Scarrwener) than what we saw?

Kitsis and Horowitz: Perhaps.

Will the silver slippers come back into play?

Kitsis: Perhaps.

Can we expect more Robin Hood (Sean Maguire) next season?

Horowitz: Can't say.

Will we see any new realms next season?

Kitsis: Absolutely.

With Jared Gilmore quickly aging, will there be another time jump for next season?

Horowitz: We have him in cryogenic freeze right now and we're just going to be waking him up for filming.

Kitsis: Jared is pretty much what his age is in real life on this show, so we haven't really stopped his growth.

Horowitz: We did a time jump of a year this year that got us into the ballpark of where he is.

Kitsis: Actually, Jared is 47. The first show he was on was Mary Tyler Moore, so he's a pro.

Will we see Henry and Roland (Raphael Alejandro) bonding?

Horowitz: Not this year.

Kitsis: Oh! Actually, we might see some.

Will we see more of Sherwood Forest?

Kitsis: We will not see more of Sherwood Forest this season.

Horowitz: But maybe down the line.

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Is there a Charming and Robin Hood friendship in the cards?

Kitsis: They seem like they're on good terms. They had that nice bonding in the Rapunzel episode. I can't see them not being friends.

Horowitz: I don't think we're doing a guys' night out episode any time soon.

Kitsis: I don't know if they're going to bro out.

Horowitz: But I think they get along OK.

Might we see the Knave (Michael Socha) in the finale?

Horowitz and Kitsis: No.

Any chance Mulan (Jamie Chung) could return?

Horowitz: Not this year, but yes in the future.

Is there a chance of seeing more of Rebecca Mader after this season?

Horowitz and Kitsis: Yes.

Has anyone read the whole fairy-tale book and possibly knows the future?

Kitsis: Wow, can't say.

Be sure to check out our previous installments (Round 1, Round 2, Round 3, Round 4, Round 5, Round 6, Round 7, Round 8, Round 9, Round 10, Round 11 and Round 12).

Once Upon a Time's two-hour season finale airs Sunday at 8/7c on ABC.