Board Thread:Spoilers!/@comment-27060727-20151022205759/@comment-24674051-20151029043250

Cora is likely a flashback, like she was in Mother. Also, the announcement, if I recall, was specific to the 100th Episode.

However, if 5B IS an underworld arc (and DG turns out to be Hades), I am sure that Cora may have some words for her daughters, and her step GrandDaughter. that could be an interesting scene if Cora finally meets Zelena, even if it is in Hades.

Let's try not to stray too far from the casting call for "DG", though.