Board Thread:Spoilers!/@comment-26714770-20150716221248/@comment-24674051-20150717164038

I also tend to think that she will be the DO at least through this season. Emma will likely have a harder time controlling the evil tendencies, but I don't think she's going to be full on evil, at least at the start.

Also, I think there may be an interesting friendship formed during the season. Emma and Gold. Gold is, as far as we know, the first person to have been tethered to the Darkness and later set free (without dying in the process), so he may have some gems of wisdom to help Emma cope with what she's dealing with.