Board Thread:Spoilers!/@comment-1916997-20180306163804/@comment-25926288-20180402213417

Chameleon-Guy wrote: Eskaver wrote: Nakis91 wrote: Craig (the photographer) just posted a story with big mushrooms so... either they go to Wonderland or Wonderland comes to Storybrooke. A little realm appearance. Probably along the lines of 6x22 unless we get to see it briefly as they travel through.

Nope, it's clearly the merge of the realms. Timeline goes nuts and that's how we meet Cruella, Pan and Young Henry, possibly Ariel as well even though she's alive/not grown up. Great theory! With the wiki’s track record, it’s probably true.