Update: DC Comics has provided the variant cover to January's Justice League of America: Killer Frost Rebirth #1 by artist Mirka Andolfo.
Click on the image to the right to see the full cover.
Original story: A fourth member of "Rebirth"'s Justice League of America title will be Killer Frost, DC has revealed to Newsarama. She joins the previously revealed Vixen, The Ray, and the Atom.
These four characters will be spotlighted in four one-shots coming in January during the Justice League vs. Suicide Squad event, before leading to the Justice League of America twice-monthly ongoing title beginning in February by Steve Orlando and Ivan Reis.
January 18's Justice League of America: Killer Frost will be written by Orlando, along with Jody Houser; Mirka Andolfo will illustrate the one-shot, with Reis providing the main cover - as he will for all the one-shots.
And as DC describes it, this Killer Frost (which appears to be the "New 52"-introduced Caitlin Snow) is a member of Amanda Waller's Suicide Squad, but is due for parole from Belle Reve Prison.
"What happens to a supervillain on their last day in Belle Reve Prison?," reads DC's description of the one-shot. "Against all odds, Killer Frost is up for parole from the Suicide Squad, but you can bet Amanda Waller isn’t going to make it easy for Frost to take her place on the new JLA."
January 4's Justice League of America: The Atom will be written by Orlando and an undisclosed artist, . This will star Ryan Choi as Atom, as foreshadowed in the DC Universe: Rebirth one-shot.
"Who’s on the roster? The Atom. Meet Ryan Choi, prodigious theoretical physics student, hyper-allergic, and crippling social anxiety sufferer," reads DC's description (via Comic Vine). "But little does young Ryan know, his first day at Ivy University will begin an epic journey that will take the all-new Atom into the very heart of the DC Universe."
January 11's Justice League of America: Vixen is written by Orlando and Jody Houser, with Jamal Campbell illustrating.
"She’s one of the country’s most successful businesswomen, an iconic fashion pioneer, a crusader for social justice, and an incredibly powerful member of the Justice League of America," reads DC's description (via CBR). "But Mari McCabe life wasn’t always this way. Follow her path to becoming the heroic Vixen in this crucial special!"
January 18's Justice League of America: The Ray will be written by Orlando on his own, joined by Green Arrow artist Stephen Byrne, according to Comics Alliance. This will star the 1990s Ray character created by Joe Quesada and Jack C. Harris in 1992, Ray Terrell - son of Lanford "Happy" Terrill, the original Ray.
DC goes on to give a new description for the Justice League of America title itself; and while it carries the "America" suffix to differentiate it from the Justice League title, it is going far outside North and South America.
"Foes of evil! Enemies of injustice! As it began in DC Universe: Rebirth, for the mighty heroes of the Justice League of America, all wrongdoing is a menace to be stamped out! Whether it comes from outer space, from the watery depths of the seven seas, or springs from the minds of men, the Justice League of America is back—just when we need it most!"
Check back with Newsarama for more details on Justice League of America and its "Rebirth" membership.