I would love the actual Itchy & Scratchy characters as playable characters in Springfield. And before anyone says anything about them being cartoon characters, we did get Radioactive Man, Fallout Boy & Petroleus Rex. Who are all comic book characters. So anything is possible. Also would like to see Poochie get added as well.
Plus their visual tasks would probably be one of the best ones ever in Tapped Out. Especially if they involve gore lol
http://vignette3.wikia.nocookie.net/simpsons/images/4/41/Itchy_and_Scratchy_History.gif/revision/latest?cb=20110105220923