Also true, DrTooth. According to OP, Kermit and Piggy are set to be released and they are considering doing Fozzie, Gonzo, Scooter, and Walter if they do well.
Fan44, I commented on that earlier. It's the style of Build A Bear. They have a basic template (allows for the stuffing/easy stitch process) and for Licenced characters, they modify the template and design new heads. Piggy looks fantastic, but obviously Kermit's slender limbs don't lend themselves well to that kind of design.
The one I really hope gets made is Fozzie. There's no reason that the Kermit and Piggy set wouldn't do well, and Fozzie in the style would look great. And of course anything Scooter is welcome. Back to what Drtooth said, we really don't want to get our hopes up too high. It's all the waiting game now, but hopefully this means there's a lot more Muppets in the works for the DVD release.