Once Upon a Time fans may discover in the final episodes of season 3 that the only thing standing in the way of Regina (Lana Parrilla) and Robin Hood's (Sean Maguire) romance is Zelena (Rebecca Mader).

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When asked by TVLine if there was anything significant coming up for Regina and Robin Hood, Once Upon a Time co-creator Edward Kitsis gave fans of the couple some potentially positive news in a Thursday report.

"You will see that the only thing standing in their way is Regina's sister [Zelena], who will test whether or not she has really changed." Kitsis said, before reflecting on Regina's emotional journey to find love again: "It's taken 60-some episodes to get to this moment of Regina opening her heart, so we're gratified the audience came with us on that ride."

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Fellow co-creator Adam Horowitz also discussed another important relationship to fans, the Rumple (Robert Carlyle) and Belle (Emilie de Ravin) relationship.

"Rumple and Belle are a relationship that has had many challenges, but what we love about them - and what the fans can look forward to - is that no matter the adversity, the light and hope and optimism at the core of Belle will continue to fight on," Horowitz said, when asked about the couple.

He added that viewers will see how their relationship plays about through the end of season 3, with de Ravin potentially giving her best performance yet on the show in coming episodes.

Once Upon a Time season 3 airs Sundays at 8 p.m. on ABC.

Watch the promo for the next episode of Once Upon a Time here:

Tags: Once Upon A Time television ABC