The Crisis on Infinite Earths crossover saw a wide variety of DC heroes from different continuities across television and film. A recently released piece of concept art shows what a former Batman could have looked like if he were part of the event.

In the Crisis on Infinite Earths: Paragons Rising hardcover -- which collects Crisis on Infinite Earths 100-Page Giant stories -- concept artist Andy Poon depicts the Batman of Earth-99, wearing a mechanical exoskeleton to support his body after years of crimefighting took its toll. The artwork featured Michael Keaton's likeness, though blurred in the circulating image.

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Keaton's Batman, which first appeared in Tim Burton's 1989 film, had been previously referred to in the first part of Crisis; the universe his movies took place in is referred to as Earth-89. Crisis showrunner Marc Guggenheim confirmed that Keaton was not approached for the crossover. Keaton is currently in talks to appear in The Flash film starring Ezra Miller and directed by Andy Muschetti.

Crisis may not have included Keaton, but it did feature an appearance by the Batman Earth-99's Batman, played by Kevin Conroy, who is best known for voicing the character in Batman: The Animated Series as well as a number of video games and animated shows. This version of Batman had given up on his code and even murdered his world's version of Superman. He eventually perished while fighting Kate Kane.

Crisis On Infinite Earths: Paragons Rising, written by Guggenheim and original Crisis scribe Marv Wolfman, is currently available in comic shops and will be available in bookstores July 7.

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(via ComicBook.com)