On Friday, Deadline claimed Alan Ritchson (Smallville, The Hunger Games: Catching Fire) will play as Raphael, and today the website alleges they know who has been cast as the rest of the Heroes in a Half Shell. According to the website, Pete Ploszek (Parks & Rec, Shameless) is Leonardo, Jeremy Howard (Galaxy Quest, Breaking Bad) isDonatello, and Noel Fisher (Battle Los Angeles) is Michelangelo.
Megan Fox will play as April O'Neil and Jonathan Liebesman will direct. The film is currently scheduled to release June 6, 2014 and the actors will use performance capture for the Turtles.
Quick note: if you're going to be passionate about the franchise and complain about the film, please try to actuallysupport the franchise as well. Buy the current IDW series or watch the Nick show -- both are excellent.