The head of WB animated movie publicity, Gary Miereanu, released the image through his Twitter. As you can see the look is the same as Geoff’s New 52 design for the Justice League. Meaning you will not see Aquaman in this film, though he will be getting his own animated movie eventually as Geoff Johns also stated.
Justice League: War comes out early 2014 with an announcement coming at October’s New York Comic-Con.
The voice talent for the film includes Jason O’Mara as Bruce Wayne / Batman, Alan Tudyk as Clark Kent / Superman, Michelle Monaghan as Princess Diana / Wonder Woman, Christopher Gorham as Barry Allen / The Flash, Justin Kirk as Hal Jordan / Green Lantern, Shemar Moore as Victor Stone / Cyborg, Travis Willingham as Shazam, and Steven Blum as Darkseid.