Bleeding Cool reports that the Batman & Son artist is one of several illustrators on board for the project, citing inside sources at DC Comics.
Darwyn Cooke has also been linked to the Watchmen prequel, along with J Michael Straczynski, JG Jones and Brian Azzarello. The new venture is expected to consist of four miniseries set before the events of the original graphic novel.
Dave Gibbons and John Higgins, who handled artwork on Watchmen, are expected to be involved in some capacity should the project go ahead. However, Gibbons told Digital Spy in 2009 that he previously turned down the opportunity to work on Watchmen spinoffs.
"DC did once float the idea of doing some spinoffs from Watchmen, but once Alan and I expressed our disapproval I think they realised it should be left alone. I think if you do anything else to Watchmen, you're going to risk diluting it rather than enriching it," he said.
Watchmen writer Alan Moore previously confessed that he does not keep a copy of the graphic novel in his house.
DC is yet to officially confirm that Watchmen prequels are in the works.