Once Upon A Time
"Once Upon A Time" teased the arrival of "Frozen." Twitter

Season 3 of “Once Upon A Time” just concluded – and we can’t get Season 4 off our minds! The hit ABC series left fans with a major cliffhanger and teased some dangerous new drama when it returns in the fall. We don’t have a spell to make the premiere get here sooner, but we can round up some of the juiciest scoop that viewers can expect in Season 4.

1. More Frozen Characters?

The arrival of “Frozen’s” Elsa was a big surprise to “Once Upon A Time” viewers. But will more characters from the Disney animated movie follow? TV Line asked series co-creators Adam Horowitz and Edward Kitsis about the possibility of introducing Olaf the snowman, and the pair decided to stay mum on the subject, telling the site: “No comment.”

However Horowitz did tell Entertainment Weekly that he’d be “disappointed” if Elsa was the only character from “Frozen” that arrived in Storybrooke.

2. Emma Vs. Regina

Don’t expect a happy ending for Emma and Regina. While the Evil Queen may have been able to set her differences aside with our heroine, that all changed in the season finale when Emma returned to Storybrooke with Maid Marion – Robin Hood’s dead wife.

“It makes sense that we’re going back to a place where these two women are going to be adversaries,” Jennifer Morrison dished to TV Line. “Emma definitely wants Regina to be with Robin, and she never would have intentionally done anything to hurt that. But she’d also never let someone die in the circumstance that [Marian] was in.”

As if that wasn’t juicy enough, E! News is reporting that the rivalry next season will be “FIERCE.”

3. Marriage Problems

The honeymoon will be over for Belle and Rumple in Season 4 of “OUAT.” While Rumple lied about Zelena’s death to his bride, his secret won’t stay buried forever.

“It’s probably not going to be easy for him,” Horowitz told TV Guide. “Those were genuine vows and he loves Belle, but he’s got his own weaknesses that he has to fight.”

4. Introducing Elsa

Elsa surprised fans by arriving at the end of the Season 3 finale. Her story wasn’t touched on, but the show’s creators did confirm to EW that she was being held in Rumpelstiltskin’s vault.

“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,” Horowitz revealed. “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 the beloved character and fit her into our world.”

5. A New Love Triangle

The introduction of Maid Marion is going to open up a whole new can of worms. Regina and Robin’s relationship isn’t exactly over, meaning that fans can look forward to a love triangle when Season 4 premieres.

“The journey of Robin and Regina is something we really want to explore when the season starts,” Adam Horowitz confirmed to TV Guide.

6. Emma And Hook

We can’t stop thinking about that kiss between Emma and Hook! According to the show’s creators, that was only the beginning of their relationship. And it’s not going to be a walk in the park. “There’s going to be some challenges ahead and we’re going to have to show you some surprised about where the two of them go,” Horowitz teased.

7. Locations

“OUAT” has taken viewers to all sorts of enchanted worlds and will continue to do so in Season 4. The show will reportedly stay in Storybrooke for the first half of the season, and will move forward from there.

Like Season 3, Season 4 of “Once Upon A Time” will continue with its split season in 2014-2015. Are you excited for Season 4 of “Once Upon A Time”? Tweet your thoughts to @AmandaTVScoop.