Was just browsing around and found a couple of sites (League of Comic Geeks and Things From Another World) showing JSA #2 pushed two weeks to 1/10.
Disappointing, and concerning. #1 slipped a week from it's original 11/22 date. #3 still shows 1/24, but I doubt that will hold. Hope this doesn't turn into another "Doomsday Clock" or "Shazam", other Johns' recent books that had shipping delays all over the map, and kill the momentum for the JSA's return.