"Once Upon A Time" Season 3 finale airs Sunday, May 11, on ABC. This is a 2-hour, back-to-back special, in which viewers learn the name of Snow White's second baby. Clues on OUAT Season 4 story will be seen. Meanwhile, Emma Swan and Captain Hook wind up in a strange world as part of the Wicked Witch effect. Watch the promo video for more clues.

Spoiler alert: This feature contains spoilers on Once Upon A Time Season 3, Episodes 21 and 22. Read at your own risk.

Titled "Snow Drifts" and "There's No Place Like Home," the OUAT 3 finale seems to offer more twists.

In Once Upon A Time Season 3, Episode 20 ("Kansas"), Rumplestiltskin (Robert Carlyle) avenges the death of Baelfire aka Neal Cassidy (Michael Raymond-James). It seems Zelena the Wicked Witch (Rebecca Mader) is gone. However, traces of her spell suggest surprising twists in the OUAT finale.

Speaking to Entertainment Weekly, OUAT co-creator Eddy Kitsis confirmed Zelena has been "defeated." However, Kitsis refused to set the record straight on whether the Wicked Witch will return or not. Perhaps the Once Upon A Time Season 3 finale has some answers.

Once Upon A Time Season 4 Story Begins in the OUAT 3 Finale

Adam Horowitz said in the same interview that the name of Emma Swan's (Jennifer Morrison) baby brother will be announced in the Once Upon A Time Season 3 finale. Horowitz also teased the OUAT Season 4 story begins "in the last few minutes of the [finale] episode."

Hypable has some spoiler photos on the OUAT 3 finale. Emma Swan and Captain Hook (Colin O'Donoghue) get sucked into a time portal, which seems to be Zelena's Plan B. The spoiler report mentions Swan and Hook must find their way out of the "Enchanted Forest of the past."

The Evil Queen and Rumplestiltskin Love Stories

There is a chance the (former) Evil Queen Regina (Lana Parrilla) will use light magic again. She and Robin Hood (Sean Maguire) could get married in a Storybrooke wedding, too. Rumple and Belle (Emilie de Ravin) are engaged, so at least two couples could give OUAT fans some modern fairy tale wedding scenes.

WATCH: Once Upon A Time Season 3 Finale Promo Video | ABC on YouTube

The Once Upon A Time Season 3 finale is expected to spark story questions, as the second season finale did. This year has been about redemption for Rumple and the Evil Queen. It will not be surprising if OUAT Season 4 focuses on Snow White's new baby.

Oncers, get ready for more adventures! #OnceUponATime will be back for Season 4! pic.twitter.com/zBEtHPwHiQ

— Once Upon A Time (@OnceABC) May 9, 2014

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