I can't stress enough that this is unconfirmed and we don't have any other details on whether this is real or not. Over on IMDB, a new synopsis has appeared for Season 5 Episode 1 debuting in 2015. Typically I wouldn't go out of my way to post something like this but with IMDB being a more valid source of information then say, Wikipedia, I figured we'd post it. We're still trying to get confirmation on this and will get back to you as soon as we know more details.
The unconfirmed episode synopsis reads:
While still trying to adjust to her new role as the Princess of Friendship, Twilight learns that her new castle has a secret.
