'Once Upon A Time' Season 5 Spoilers: Major Character Heads Back To Storybrooke?

"Once Upon a Time" season 5 is still on break but the cast and crew have already started filming the rest of this season's episodes. Photos taken on the set were posted online and created a stir as spoilers started to brew regarding what the remaining episodes will entail.

Most of the photos reveal that the series' characters will have an interesting time while in the Underworld. The photos were since deleted but most of it were reposted on some websites and forums inciting serious discussions about the remaining episodes of "Once Upon a Time" season 5.

One of the photos reveal Zelena, played by Rebecca Mader, interacting with Hades, played by Greg Germann. The photo lead to several "Once Upon a Time" season 5 spoilers speculating about what the two antagonists are planning. There are also some talks about the possible return of a major character back to the land of Storybrooke.

Based on the last few episodes of the show, Zelena was banished by Regina leading to rumors that the Wicked Witch of the West will hatch a revenge plot. It was later revealed that Peter Pan, played by Robbie Kay, is returning to the series.

Kay shared some spoilers about what his character's role in the complicated plot of "Once Upon a Time" season 5 will be.

In a statement acquired by Enstarz, Kay said, "You're going to see a little bit in a different light. Obviously a lot has happened in the two or so years since we saw him. A lot has happened, I think he's learned from what has happened in Season 3."

Aside from Zelena and Peter Pan, fans believe a lot of characters will reprise their roles as the remaining part of season 5 will unfold within the coming months.

According to Christian Post, ABC Entertainment president Paul Lee applauded "Once Upon a Time" for its successful run.

The ongoing rise in the show's popularity is critical to its future as ABC has yet to confirm whether the series will be extended for a sixth season.