Superman [Clark Kent; Kal-El]; Batman [Bruce Wayne]; Amanda Waller; Pete; Fred; The Last Line [Bruiser [Ray Gibson] (first appearance); Sekhmet [Layla Adams] (first appearance); Brannon [William Brannon] (first appearance); Hotshot [Jonathan Banks] (first appearance)]; Doomsday (villain; flashback); All-American Boy [Josh Walker] (first appearance)
The creators deliver a new team of heroes to battle The Man of Steel and The Dark Knight, known only as The Last Line! They were created as a "last line" of defense against a rogue Superman, and they take no prisoners! [per solicitation]
Dan Didio talks about the "Sightings" banner that will indicate significant DCU issues throughout the year. Hot list - SUPERMAN/BATMAN #47, COUNTDOWN #1 and DEATH OF THE NEW GODS #8. House ad for SUPERMAN/BATMAN #48.