Board Thread:Spoilers!/@comment-25733960-20161205025332/@comment-26179141-20161207194836

Yup, we won't be seeing Lily and Mal in 6B. :c

TVLine's newest Ask Ausiello touched on that:

Question: I know I’m not the only one who caught The Dragon mentioning a daughter in Once Upon a Time Episode 8. Have the showrunners said anything lately about when Lily and Maleficent will be back? Or whether Emma will keep her promise to help Lily find her father? —Sabrina Ausiello: In a word, “No,” that Dragon (played by Tzi Ma) has nothing to do with the mystery of Lily’s father, the series cocreators confirmed for Matt Mitovich. “We had high hopes” to revisit that story in Season 6, Eddy Kitsis shared, “but we just won’t get to it.”