Hook telling Emma about the Curse and getting her to believe is like August doing the same thing.
Hook telling Emma she needs to do a thing to help her family is like August telling Neal the same thing.
Emma’s gonna see the dream catcher, and also potentially drink a memory potion, but basically, she’ll get her memories back and due to the dream catcher being a focal point, she’ll remember stuff about Neal, including the new stuff she’s learned about why he left her.
Neal might want to be the one who goes to her in NYC, but for whatever reason he’s prevented from doing so.
Somewhere in the midst of all that, maybe there’d be a fitting spot for a flashback showing more of August’s role in their breakup.