DC Comics: The New 52 Special Edition - which features Pandora, a character central to 2011's line-wide relaunch - will tease future events coming to the publisher in the coming year.
Senior Vice President of Sales Bob Wayne and Vice President of Marketing John Cunningham also hinted at an upcoming crossover for Green Lantern similar to Batman's 'Night of the Owls' storyline.
"We feel that the second wave [of New 52 titles] is an exciting kick-off point for us, and that's going to start on Free Comic Book Day, and I think when fans get a look at the Free Comic Book Day book and what it promises about what's coming the rest of this year from DC, they're going to be more than pleasantly surprised," Cunningham told Newsarama.
Green Lantern writer Geoff Johns is due to reveal his plans for the title in the coming weeks.
'Night of the Owls' will launch in Batman #8 on April 18.
Free Comic Book Day will be held on May 5.