UPDATE 2: Official summary provided by Disney: "It's Anna's birthday and Elsa and Kristoff are determined to give her the best celebration ever, but Elsa's icy powers may put more than just the party at risk."

UPDATE: Official title: "Frozen Fever." Release date: Spring 2015.

During tonight's "The Story of Frozen" special on ABC, it was announced that "all the characters" from the film will be appearing in a future animated short, complete with a new song. This will be the first animated appearance of the characters since the release of the movie (their first "official" appearance will come in book form early next year). Nothing is known about the short as of right now - plot, setting, or even when and where it will be released - but it's obvious Disney knows that the fans are begging for more! More updates will be posted as they are announced..

The full story here: http://www.broadwayworld.com/article/FROZEN-Characters-to-Reunite-for-Upcoming-Short-Film-20140902