It's a sad reality in my view that Clavia ceased developing the Nord Modular range, which I remember being based on high development costs vs relatively low numbers sold.
My guess is that, as mentioned, more of the same type of sound is not really the appeal for the generalist - a pad, is a pad,..is a pad..?
What an innovation it would have been to have a Modular G3 with integrated sample flash RAM such as is found on the Wave. Unchartered territory for a hardware instrument to the best of my knowledge, which would surely have led to genuinely new approches to making music.
Integration with analogue gear would have been a great addition too...
Additionally, a Wavestation-type machine with sample flash RAM would be great, as long as it was made more accessible which I guess would tend to ramp up the cost :-(
..more RAM, ROM..?