Man this issue was so awesome!
So is this the first time any of these characters are being reintroduced to the new 52? I know Hawkman, GA and Firestorm have their own series, not so sure about the rest??
Zatanna is a member of Justice League Dark, Vixen was a member of Justice League International, Black Canary is in Birds of Prey, and Black Lightning was just featured in DC Universe Presents along with Blue Devil. So this is only the New 52 introduction of Element Woman and Goldrush (whoever that is)