Nice news! That said, Johns is writing this, right? He's one of the worst choices to write PG, good as he might be with the other JSAers; he simply doesn't like her, or understand her, which is why we got weeping, useless PG through his prior run on JSA. Yes, he brought her back, but he didn't do her that many favors after. His version of PG is very unsure of herself, and with reason, as she's largely useless, and mostly serves as rescue bait.
So, mixed feelings, glad she and the others are coming back, not too happy about Johns. Well, I suppose the next impossible thing to hope for is a PG solo title, written by someone else.