We know that DC is launching JUSTICE LEAGUE OF AMERICA with Geoff Johns and David Finch as the creative team. This morning, they've announced that there will be some variant covers for the issue. There will be 52 of them, one for each state (as well as Washington D.C. and Puerto Rico).
As for the big news, two of the members above will be getting their own ongoing series in February as well. Some of them already do so that narrows it down. Rather than sit and try to guess, we'll just tell you. Vibe and Katana will be getting solo series.
KATANA will be written by Ann Nocenti and illustrated by Alex Sanchez. JUSTICE LEAGUE OF AMERICA'S VIBE will have a first issue co-plotted by Geoff Johns with series regular writer Andrew Kreisberg with art by Pete Woods.
A last bit of JLA-related news is GREEN ARROW will be getting a new creative team as well starting with issue 17. Jeff Lemire will be writing with Andrea Sorrentino (I, VAMPIRE) handling the art. That definitely is an interesting choice as the two have been killing it on their other titles.