Any word on if/when Ketron will produce an SD sound module?

Am getting weary of lugging around the extra weight of the X1 when I am only using it as a sound module triggered by my accordion. I could get an X4, but the 305 styles on the SD1 verses the 198 on the X Series intrigue me.

But, would it make more sense to get the sound module equivalent of the KN6500 or PSR9000Pro (are there sound module equivalents of these boards) to have access to different sounding styles? The problem there is I would spend that much more time looking for just the "right" style, instead of practicing the music.