Once Upon a Time Cast Previews the Emma/Regina 'Flip,' New Dagger Rules and Belle's Waiting Game

“If you wanna have a good time, call Emma.”

That’s Jennifer Morrison’s winking assessment of her Once Upon a Time character’s transformation into the “Dark One” — and just one of many amusing/scoopy tidbits our Matt Mitovich extracted from the ABC drama’s cast during an interview in TVLine’s Comic-Con suite at the Hard Rock Hotel.

Of course, with Emma and Regina set to “flip” their roles, how will Hook handle his lady love’s unheroic behavior — and her new look (inspired, apparently, by David Bowie and Blondie)? Colin O’Donoghue teases that his character might dig her new threads, but loves the woman whose goodness he spent Season 4 protecting.

Also on the docket: The new Rumple (and what it means for Belle); a dagger that will come with “caveats” for Snow and Charming; and some teases about Merida (to be played by Scottish actress Amy Mason).

Press PLAY above for the full interview, then hit the comments with your thoughts!