Hangover 3 coming in 2013

From ComingSoon:

Warner Bros. Pictures and Legendary Pictures are reteaming with Todd Phillips for "The Hangover Part III," the third installment in the record-breaking comedy franchise, which is slated for release on
May 24, 2013. The announcement was made today by Jeff Robinov, President Warner Bros. Pictures Group.

"The Hangover Part III" will star Bradley Cooper, Ed Helms and Zach Galifianakis, who will reprise the roles of Phil, Stu and Alan, collectively known to moviegoers as the Wolfpack. In the previous two films, the three friends' attempts to plan a celebration have resulted in disaster for them, but led to a combined billion-dollar success at the worldwide box office.

In making the announcement, Robinov stated, "We are extremely pleased to have Todd Phillips and the guys back together again for another 'Hangover,' and we look forward to collaborating with them on another great movie."

Phillips said, "I'm so excited to embark on another 'Hangover' film with Bradley, Ed and Zach. We're going to surprise a lot of people with the final chapter we have planned. It will be a fitting conclusion to our three-part opera of mayhem, despair and bad decisions."