Now that it's been brought up, I'd really like an episode fully devoted to making Nealfire likeable. Not in the way they try to make Regina seem all victim-y, but actually have the guy get his come-uppance and then try to Fix What Once Went Wrong and have everyone else react realistically to it. Sure, it'd be depressing and a little too "real" for our Disney Fantasy show, but if they're making it such a central point of the story that Emma's life in the Land Without Magic was so sucky, fallout from what happened/was done to her during that time should mirror that suckiness.
It really is a shame how the show gets so caught up in The One Narrative Line of the new Big Bad or Curse that everything else gets pushed aside way too often, especially the characters we're supposed to love because they're the frickin' protagonists.
ETA: totally agree with Camera One on the supporting cast focus wishes. Part of what made me excited about the show at the beginning was the possibility of including and fleshing out all the fairy tale/Disney characters available, but then the budget and actor-related limitations showed us why it's a very difficult format (and the reason why people like Ruby, Mulan or Tink are now glaringly absent even though their very nature and the plot itself kind of make it organic, if not essential, for them to just be there). Yeah, a mini-series of one-offs would be amazing, if only to provide us with selfish closure.