Once Upon a Time Season 3 ended with some major changes with regards to the characters, and there were a number of mysteries still to be answered when the curtain fell on the season. Fans will now be looking to Season 4 to see what might happen and how the new characters coming into the show will affect the plot lines.

Fans will be interested to see what is next for Rumpelstiltskin and Belle, and although there were a number of hints that emerged in last season, fans will just have to be patient to see the developments for those two. 

Show creators also revealed that Regina is going to suffer a major setback, but details of exactly what that setback entails are yet to be known.

Executive producer Adam Horowitz assured OUAT fans that the future of the Rumpelstiltskin-Belle love story still has a long way to go. 

"There is a list of things that are brewing for Belle and Rumple to deal with, but before they do, let's let them enjoy their honeymoon," Horowitz told TV Line.

Meanwhile, Regina's knowledge that Robin Hood's wife is alive will affect her more than ever.  From being a bold and strong character for the past 66 episodes, OUAT is now seemingly ready to throw in some major twists. 

Co-creator Eddy Kitsis told Entertainment Weekly, "The question we want the audience to think about is, 'How does she handle it?'  It is a very uncomfortable situation for everyone involved, it's very complicated.  She's done a lot of growing and yet we know what her weaknesses are."

Also, fans will be excited to know that the Once Upon a Time team is welcoming the newest addition to their growing family as Ginnifer Goodwin gave birth to a baby boy on Thursday, May 29.  Goodwin and Josh Dallas are also on-screen partners with their characters, Snow White and Prince Charming.

According to Us Weekly, the couple began dating on March 2012 and was engaged late 2013.  The two underwent a secret wedding ceremony just over a month ago.

Once Upon a Time Season 4 will be back on TV screens sometime in September or October at its usual time slot, Sundays at 8 PM on ABC.