Board Thread:Spoilers!/@comment-6175354-20140325184817/@comment-32390199-20140326152242

Or it is the minor wedding between Ariel and Eric. Enough people know Ariel to be present at the wedding. And since they aren't main characters it would not be too big. Just a wedding at the beach or something. A few chairs to sit on and a little wedding arc to stand under. And then the person or event for season 4 will occur.

Although, of what we know, a few people only know Ariel. Regina (who would take Robin and Roland along), Snow (who takes Charming, Emma, Henry along), Belle & Mr. Gold, Leroy (so the other dwarfes come too), Granny (who might take Ruby along), Hook probably comes along on Emma's request. The only recurring characters not present then would be Archie, Blue, Tink, Whale and Mulan. As Aurora and Phillip are kinda playing a villainous/mysterious role now