I'm so excited! While working on January's list of DVD releases, I stumbled across a page on Amazon for The Legend of Korra, Book 1: Air. No release date is set, but my guess is the DVD will ship just before the next Book airs on Nickelodeon in April. I scoured Nickelodeon's and Paramount's press sites to see if any press releases give more details, but so far I found nothing. But in the meantime, you can compare prices and pre-order the DVD. For me? Done and done!
Picture courtesy of Pricegrabber.com.