Now before all the fanboys start lighting their torches and setting up the Affleck effigy, this is only about the costume! Just remember; everyone had a fit when Michael "Mr. Mom" Keaton was cast in 1989, and we all know how that turned out!
This is a piece of concept art that has hit the internet featuring a design by comic book artist Steve Scott who worked with Christopher Nolan on The Dark Knight comic book. I seriously doubt this is the design or look they are going for in the movie--this is just his vision of what could be. I kinda dig it - it's got a little "Batman Beyond" thrown in there with the red bat. I love the note at the bottom that says, "Ben wants no bat nipples." I bet that's in his contract.