Dart's 3D model for Playstation All-Stars Battle Royale game has been leaked by its character artist, Mike Edwards! He has a website showcasing his works for various games and 3 days ago, he uploaded 2 Dart renders saying "cancelled DLC character"
His website: http://www.shapeshift3r.com/
The page containing Dart renders: http://www.shapeshift3r.com/2013/04/play-station-all-stars-battle-royale.html (there's also Sir Daniel renders but ignore them and scroll down!)
My blog entry about this: http://ongan-san.blogspot.com/2013/06/leaked-dart-feld-model-for-playstation.html