I asked the same question the other day. I think no one really knows for sure yet. But here's the reply Debbie H gave me...
Here is a quote taken from the Home Page:
The Body Blast series - 4 DVDs with over 40 Workouts! or 6 VHS videos: These soon to be released workouts, Include: Step Blast, Kick Punch & Crunch, Step Jump & Pump, Push & Pull, Legs & Glutes and Supersets.
The Body Blast series is currently being filmed. We expect VHS tapes to ship in September and DVDs soon to follow. You can preorder now and save! For more information or to preorder - Click Here