I think you will not see a replacement for the SD1 until 2004 .
Ketron does have some new styles and sounds available .


I think the next generation of keyboard will have nicer screen (tilt,color), help screen (manual stored on the hard drive) , scroll notation ,larger hard drive to store additional sound library ,improved vocal sampling (.wav sync) , more assignable outputs and usb/firewire ( just to name a few) .

I think the drum remix on the XD series is cool , soI am certain you see more of that as well .

The Sd1 is still a great sounding keyboard IMHO . dano