Board Thread:Show-Related Questions and Answers/@comment-26258922-20150402195608/@comment-26159109-20150406175059

I guess they were unable to since Frozen had to happen before Elsa's entrapment in the urn, which happened before the dark curse. And Maleficent wasn't "alive" during the missing year. I can see them using the missing year if they bring back Jafar or if the rumors about Robert Carlyle leaving are true, then I can see them having Zelena in his place as the trickster interacting with everyone during the missing year.