Board Thread:Spoilers!/@comment-26830263-20170710210232/@comment-5899967-20171011120840

How I would do this episode's flashback (which isn't out yet, sorry mods but I have to do this):

Scene 1: Hook and Henry fight, Henry is about to leave home and Emma talks to him. She fears she won't get a second chance with him.

Scene 2: Henry says goodbye to Emma and Hook, before going to Regina; Hook gives him the magic bottle.

Scene 3: Some years pass, Emma and Hook had a daughter (but we don't know her name for mystery reasons), we see some of their happy beginning, the message from Henry arrives, he's in danger, they call Regina and the 3 of them somehow travel to New EF, leaving the baby with her grandparents (off-screen).

Scene 4: While Lady Tremaine sends a monster created by the wand to haunt Henry, the family meets with Adult Henry in the forest, Emma decides to stay in the New EF permanently, she doesn't want to miss more moments with Henry, meanwhile Hook and Regina search for Cinderella.

Scene 5: They find Cinderella, Henry and Cindy banter, Emma understands they will likely become a couple and gives them (somewhat) her blessing. The creature attacks specifically Henry to take his soul, but Emma takes his place and fulfills her role as Savior and mother.

Scene 6: Emma says goodbye to Hook personally, they kiss, then says goodbye to Henry and Regina. Before she dies, Regina uses a spell to capture part of her spirit and seal it inside Henry, so a part of her will always live with him. After she is dead, Henry decides he wants justice and wants to imprison Lady Tremaine.

It's a lot more simple and boring, but there aren't any contrived plots and plot devices, the present day storyline would be about Hook and Henry, while the flashback would be about Emma and Henry. Following that, in episode 4 Rumple learns about Emma's death and decides to go and help his grandson.