Something big really big will happen in 510 when Excalibur is complete again..... As we can see from one pic from the set yesterday................ Excalibur is complete. And on this sword we can read... Emma Swan but also.... KILLIAN JONES!!!
https://twitter.com/OUAT_Source_FR/status/654651823425327105
It deservers its own topic. So, what do you think? Two dark ones? Emma sacrifices Hook's heart and gave him one half of it, changing him into a half of Dark One?