Board Thread:Spoilers!/@comment-2153169-20150224042854/@comment-25355646-20150224180420

WorldHopper22 wrote: I thought that was Maleficent's dragon form in the promo. It could be a different looking dragon because I imagine Maleficent can transform into all kinds of beasts. I take it back. I got a good look at it's head and now I'm convinced that its Chernabog. I can't wait to learn his backstory and with the Sorcerer's backstory being revealed, I have a feeling the creation of the Dark One will be shown. I think when Emma, Regina, Belle, Hook, and MM are releasing the fairies, a great dark force (Chernabog) is trying to escape the hat but they close the hat before he can. Emma then is tricked into releasing him. His spirit could be communicating with Emma because the hat was open too long and his spirit came out of it. His spirit tells her: "I have been imprisoned in this hat for thousands of years, by the original Dark One. There is a storm of darkness that will ascend upon your small town, but its not too late. I can help you. Release me and I can."

Also, along with all the stars on the hat, there is a huge nebula in the center of it. So maybe that nebula is Chernabog.

And if Emma releases Chernabog in 4x12, then maybe Will does release Maleficent in 4x13.