Board Thread:Spoilers!/@comment-25926288-20170203182557/@comment-30389283-20170421173406

From EW's spoiler room:

"Plus: Someone will make a big sacrifice during Sunday’s episode in a bid to take down the Black Fairy."

I don't think Zelena is gonna die because she was seen on set for other episodes, so maybe she abandons Robin? Or gives up her magic?