Saying that what’s coming up sounds like the best eps ever makes it sound like he does actually have some decent scoop on what’s happening in S3B.
As for the picture, who knows, because is there really anyone on the show who’s in a position to be getting married? Rumbelle will get married one day, but general consensus is it’s too early in the show’s run for that to happen, and anyway, the pic is of a royal wedding, so Rumbelle doesn’t really fit. Dunno that they’d marry off OutlawQueen that quickly, and then show us how their relationship developed through flashback, because would Regina really be ready to marry someone in the space of just a year? The only way I could see it relating to Emma would be if Chris Gorham’s character ends up being her fiancee. On the one hand, I could maybe see them pull the Surprise!Fiancee!In!NYC! thing with Emma like they did with Neal, but on the other hand, I think we can all agree that Emma doesn’t really need any more potential love interests.
And I doubt it’s a about the real life Gosh wedding, because it sounds like what he’s gonna be revealing is about the show, and also, I doubt Gosh would let any details of their actual wedding plans get leaked to the media.