In the above video from this week’s New York City ComicCon, we get to see some inside information about how they designed Superman, Batman and Wonder Woman’s looks for this version of the characters. What surprised me was costume designer Michael Wilkinson dropping that Diana (Wonder Woman) is immortal. I don’t recall her ever being immortal but that her super powers of resilience make her very resistant to aging. But then maybe that is what he meant.
I do like the smaller details that we may never really see such as the Kryptonian script (presumably around the belt) that share some alien proverb about responsibility.
But we also get a closer look at some of the concept art too. Check it out.