I like that idea a lot. And he has done it before. Can't see it organically working in the current universe, though. The JL are framed too godlike at the moment and Dick needs his ties to the wider DCU back first. Apart from Clark, maybe Diana thanks to that one Titans Annual and Cyborg thanks to him slowly being an ex-Titan again, Dick has no pull over the Leaguers. He's only been portrayed as the tag-along Robin in the recent stories.