IGN reports that the Tokyo Game Show demo of Burnout Paradise features a rumbling controller. According to IGN, "the controller we were using to play the demo looked exactly like a standard Sixaxis, except that it had a sticker on the bottom that said 'RUMBLE.' It also felt notably heavier than the standard Sixaxis."
It is expected that the official announcement of the return of the rumble will be made at Sony's Keynote Address at the Tokyo Game Show.