Based on all of that, it doesn't sound to me like the next SoundStorm is likely to find its way into a future nForce chipset. Instead, some future GeForce seems like a more likely place for SoundStorm to appear, as strange as that sounds. Of course, it's all speculation at this point, but in one form or another, SoundStorm will someday return.
http://techreport.com/onearticle.x/7706