Rich Johnston's LYING IN THE GUTTERS
rumor column had this to say: "The new weekly series to follow DC's "52" is called "Countdown." Written by Paul Dini, it will start the week after "52" ends, and will continue the concept of portraying the DC Universe out in real time. Other new titles to look forward to include "Black Canary" and "Cyborg."
Now, keep in mind this is a RUMOR column, so the info has not been officially announced by DC! I'm guessing the Cyborg series is a mini-series, but we shall see!