I apologize in advance if this is directly answered in the show, but I thought it would be fun to discuss theories about what happened in other worlds during the Dark Curse. In other words, what happened to Wonderland during the Dark Curse? What about Neverland? Oz?
I personally believe that all other worlds were frozen in time, just like Aurora and Philip's kingdom was (when Cora shielded it from the curse). Why do I believe this? In this origial script, Rumple said that the curse affected all worlds. I know this is neither proof nor canon, but it actually seems to make sense, anyway. I don't remember seeing any worlds during the time period of the Dark Curse (I apologize if it occured in OUaTiW, I never really got too into the spin-off...). The only world that we know for a fact wasn't frozen in time is Neverland because Bae escaped after the Curse was enacted. (However, this can easily be because time already stands still in Neverland.) This theory would explain why Zelena looks the same as in 3B even though 30 years has passed (because only 1-2 years have passed in Oz after the Curse).
Thoughts? Alternate opinions?