Crossing Jordan creator Tim Kring is hard at work on two new series, one of which is for a Peacock rival. In addition to developing Heroes  a large-scale, ensemble drama for NBC about ordinary people who come to discover that they have extraordinary superpowers Kring is also penning an untitled CBS drama set in a big-city mayor's office, in which an old-school politician is positioned against a fresh-out-of-Harvard hotshot who could save his career.