As yet there's no date for the re-release, but it seems like a good Move (geddit?) for Sony to make. Heavy Rain ended up having a surprising amount of mainstream appeal, and it once again secures the PlayStation Move as a control mechanic not solely targeting the Wii-too crowd.
We've got a trailer of the PlayStation Move supported Heavy Rain above. Don't worry if you've already bought the game, because a post-release patch will add in Move controls to existing copies of the game for free.