Just got an email from Rockstar Games. No details as of yet, but it lends credence to the idea of a "Streets Of San Francisco" themed 70s setting, perhaps. It's slated to show up in October 2004 on the PS2.
An ancient proverb summed it up: when a wizard is tired of looking for
broken glass in his dinner, it ran, he is tired of life.
— Terry Pratchett, “The Light Fantastic”