|I actually kind of like that new Superman costume as seen here. That's just no good for nerd-rage.|
On the left, they said that was Deadman, Atom, Element Girl and Firestorm. I don't think that's Element Girl, I think that's Dr. Light. (That doesn't look anything like Element Girl, imho, and they put a dot of white in her eyes like, you know... light.)
In the middle, we clearly have Aquaman, Green Lantern, Wonder Woman, Superman, Batman, Flash and Cyborg(!)
On the right they're calling it: Green Arrow, Hawkman, Powergirl and Mera. I don't think that's Powergirl, as much as I love me some Powergirl. I suspect that's Black Canary. I mean, it COULD be Powergirl, but with Wonder Woman on the team and Superman... it seems a bit redundant. And, of course, all of these characters (including Dr. Light) have longstanding JL ties. Certainly Canary has a much, much longer history with the JL than Powergirl.
So... we'll see, I suppose.