Rio 2, directed by Carlos Saldanha and produced by Blue Sky Studios, will be released in April 2014. Here is the official synopsis released this morning with this teaser:

The entire cast of the animated smash Rio returns in Rio 2, and they are joined by a new flock of top actors and musical talents. Rich with grandeur, character, color and music, Rio 2 finds Jewel (Anne Hathaway), Blu (Jesse Eisenberg) and their three kids leaving their domesticated life in that magical city for a journey to the Amazon. They encounter a menagerie of characters who are born to be wild, voiced by Oscar nominee Andy Garcia, Oscar/Emmy/Tony-winner Rita Moreno, Grammy winner Bruno Mars, and Tony winner Kristin Chenoweth.