Besides a bunch of reprint collections, did Byrne have anything printed in 2007? I honestly can't remember. But either way, he's making up for it this year. He's got a bi-weekly arc starting this month in JLA: CLASSIFIED from DC; plus two STAR TREK projects and FX (a new superhero series), coming from IDW. And that's all within the next few months. Maybe he was just taking a breather?