Board Thread:Show-Related Questions and Answers/@comment-24243167-20131224102233/@comment-35123366-20180327140334

Tristan Shelton wrote: If you all would look at both counterparts of Rumpel you would see that it says he is still alive in the Enchanted Forest but dead in Storybrooke.

In the dagger scene Mr. Gold (Not Rumpel) calls down his shadow which goes into him while he's holding Pan. Since him and Pan both don't have shadows and their so tightly embraced, the shadow goes into both of them, considering them to be one person. So, they shared the same shadow at that point.

Rumpel then stabs the dagger into them. The dagger is so long that it piercers both of them. By doing this, the Dark One's power is transferred to Pan, turning him back into Malcolm. Since the dagger is also piercing Malcolm the power is transferred back to Mr. Gold but he is already basically dead so thus the Dark One line is ended.

I highly doubt that this will affect anything that happens in the Enchanted Forest. Regina made it so that it was as if the Dark Curse never happened. Therefore, everything that happened in Storybrooke basically never happened. So therefore, Rumpel will most likely appear in the Enchanted Forest. Superbly explained