"Once Upon a Time" Season 3 spoilers have piled up through its long hiatus. Episode 12 ("New York City Serenade") will soon run on ABC, air date on Mar. 9. Fans are excited to watch the Wicked Witch storm Storybrooke. A spoiler has also come out on a major character's imminent death. Here are five of the biggest changes in the fantasy series.

Spoiler alert: This feature rounds up the spoilers on Once Upon A Time Season 3. Read at your own risk.

The Wicked Witch of the West, also known as the green-skinned Elphaba, is among the most highly anticipated TV characters this year. Robin Hood is also coming back to OUAT. Rapunzel will be introduced. Snow White and Prince Charming are pregnant (just like the actors playing them in real life). And Emma Swan, who has lived for a year in New York, is in a new romantic relationship! These are five of the many things that Oncers are looking forward to seeing in Once Upon A Time Season 3.

In interview with TV Guide, Jennifer Morrison, who plays Emma Swan, explained why the Wicked Witch of the West is a must-see character in OUAT 3. She said Elphaba is "possibly the most terrifying villain we've ever had because her desires and intentions are very unclear." Rebecca Mader ("The Devil Wears Prada") is playing Elphaba.

Through Elphaba, Once Upon A Time Season 3 is expected to show the more noble side of Regina Mills (Lana Parrilla). Perhaps it is not even right to call Regina the evil queen anymore.

OUAT 3 Robin Hood actor Sean Maguire seems excited for what happens next at the Enchanted Forest. See this retweeted image on Twitter. He is believed to be Regina's soulmate. With Tinker Bell's (Rose McIver) help, this two could even get married in OUAT 3, eventually. Fans are hoping the spoiler on a character's death does not pertain to Regina. Just because she's no longer "evil" doesn't mean she should die in the series, they say.

See the first still photos of Rapunzel (Alexandra Metz) in this Hypable report. OUAT showrunner Edward Kitsis has said the show is going "a little darker and freakier" on Once Upon A Time Season 3. Clearly, Prince Charming (Josh Dallas) and Rapunzel will be getting to know each other. Still, it seems Snow White (Ginnifer Goodwin) should not feel insecure.

In another Once Upon A Time Season 3 report, Rumplestiltskin's only son will be in talks to Prince Charming and Snow White about their daughter Emma Swan. The parents, however, have accepted that Emma no longer remembers them. They are looking forward to starting a new chapter with their baby - who will be in the same world as them.

Neal aka Baelfire (Michael Raymond-James) will find himself in the same situation as Rumple many years ago. He's got to find a way to be with Henry (Jared S. Gilmore) again. He is obviously still in-love with Emma Swan, though spoilers say Captain Hook (Colin O'Donaghue) would get to Emma first. There are Captain Swan moments in OUAT 3x12. However, she is already taken - in New York!

Christopher Gorham of "Covert Affairs" is joining Once Upon A Time Season 3. Some fans are speculating he is the "new relationship" mentioned in the Emma Swan spoiler reports. Emma Swan thinks her new boyfriend is a good guy, but Morrison said, "there's more to him than what's on the surface."

WATCH: The Wicked Witch of the West in Storybrooke on Once Upon A Time Season 3! [ABC on YouTube]

Here is the Wicked Witch (Rebecca Mader) in a gripping ABC teaser video!

Once Upon A Time Season 3, Episode 12, premieres with a March 9 air date on ABC. This episode is titled "New York City Serenade." The Wicked Witch makes an appearance here, but there will be more about Elphaba on Episode 13, "Witch Hunt."

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