Nickelodeon surprised "The Legend of Korra" fans today with news that the 13-episode third season, "Book Three: Change," will premiere on Friday, June 27 at 7 p.m. ET. IGN says that the first two episodes of "Book Three" will air that day from 7 p.m. -8 p.m. ET/PT, followed by a special bonus presentation of the third episode of "Book Three" at 8 p.m.
New episodes will then resume in the show’s regular timeslot, Fridays at 8 p.m., beginning July 11th. There won't be an episode the Fourth of July.
Here's also a new clip from the season premiere as well as the previously-released trailer.