I would like to see Hook have some sort of motivation that isn’t directly tied to Emma. For example, Charming looking for his father’s potential murderer. That has nothing to do with Snow but it could tie him to a villain they just introduced…..my cookies are on black fairy being the murderer. I’m also sticking to my theory of Hook’s mother also being Black Fairy, making Rumple and Hook brothers. That would tie Hook to the main villain in the second half, and it literally pins everyone against this woman which could lead to the final battle. You have Rumple and Hook hating their mother for abandoning them, Charming hating her for killing his father, and Emma trying to fight for her life against Gideon who was raised by the black fairy to be evil. Sounds like a final battle to me. I could even see a rehash of the finale of 3A instead this time, Hook and Rumple sacrifice themselves together as brothers to save the town.