Now that the whole as Batman controversy has begun to quiet down and people are starting to warm to the idea, curiosity is running rampant about what the Bat's costume will look like, particularly as Bruce Wayne's storyline will be far different than anything we've seen on screen to this point.
CBM is claiming that their insider source has told them the current cowl designs for Batman are being based on none other than the Batman: Noël graphic novel, which was a self-contained 2011 arc based on Charles Dickens' A Christmas Carol.
Here are a few illustrations of that particular costume, in case you're not familiar with that design:
The source also claimed that they had initially played around with costume designs based on Injustice: Gods Among Us, but ultimately scrapped them as they were coming too close to Nolan's design. What's interesting is how much grey is in the Batman: Noël version of the costume, something of a hearkening back to the traditional color scheme for the Caped Crusader.
Superman's costume will also be getting a few tweaks from the one we saw in Man of Steel, and there are two separate teams at work on each costume redesign. Basically, expect a lot of concept art to surface from this movie in a few years' time.