Board Thread:General Discussion/@comment-26394456-20150714132009/@comment-26159109-20150722032432

A theory that seems really plausible:

Camelot was cursed by the Dark Curse by king Arthur (around the time Regina cast her curse so the timeline will fit perfectly and conveniently). But the curse didn't take them to LWM (probably because Merlin did something to prevent that), only gave them false identities andgot them  frozen in time. Merida is their savior, only she never got there. So our heroes's job is to get Merida to Camelot, to break the curse so Merlin could remember who he is so he could defeat the darkness. Only there is a different force in Camelot who will try to prevent them - The Dark Swan.