I can see OUAT having the same problem. Already there have been storylines that have been left hanging & never mentioned again, the actors/actresses never appearing again. It seems this situation just keeps growing as they keep introducing new people. I'd prefer they concentrate on the core characters & situations.
The more convoluted it gets & the more characters introduced, the more questions won't be answered.
But the main ones will. This will leave viewers polarized. Some will leave satisfied. The others will keep asking "What ever happened to......." "Why did ......."