What if <em style=”box-sizing: border-box; font-family: Helvetica, Arial, serif; background-color: rgba(255, 255, 255, 0.75);”>Emma cast this curse and sacrificed her own heart
Not happening, they already said whom cast the curse will be one of the mysteries of S7. I highly doubt they’ll reveal it in episode 2.
I also think the way the curse is cast works differently in EF 2. I’d say you’re looking at the more likely possibility of Anastasia being used to cast the curse.