I was happy about that
It ended with Henry meeting his daughter just like how Emma met him in the pilot, but at the start of the episode you saw them in the Enchanted Forest and she had to keep the book safe. I just read a theory that they might go back in time to when Rumple was The Dark One/Rumplestiltskin, Regina was the Evil Queen and Killian was Captain Hook, all villains and that's why it's important the book stays safe. I'm not too sure. It'll be interesting to see how it gets done.