The February 2012 sales chart shows a fair number of books selling above Green Lantern's former high water mark of 70k. Not every book, obviously, but enough that they're clearly making a better profit than they were before.
They lured me back, for one, since there's a continuity reboot on many of the titles, which meant I didn't have to worry about catching up on a lot of the franchises. There's also new titles that intrigued me, since DC explicitly went into areas they've neglected in recent decades, like magic/horror books and war books. (Ironically, the franchise I used to love the most, the LSH, is being written horribly in all its titles, and I dropped them like a set of hot rocks after a few issues.)