A SOLARIS external, 1U Rackmount hardware expander where I can control all the functions through the SOLARIS panel interface. I would at least TRIPLE the number of DSP SHARCS --- so, I believe the SOLARIS uses 6 SHARCS, I would add a box with 18-SHARCS (that would bring up the total to 24 SHARCS) - or maybe 6 TIGER-SHARCS if that's cheaper. The SOLARIS RACK EXPANDER would increase polyphony of voices and would provide greater multi-timbrality, as well as more great emulated filters, waveshapers and other elements through the easy to use GUI on the SOLARIS keyboard --- it would be the ultimate performance machine for studio *and* stage. I would add extra MIDI connectors for other kinds of controllers and OSC control with a link to an IPAD or external PC with additional software (that can be purchased in modular increments in a software virtual "rack").
I would think that if I wanted an even bigger setup, well, I could just buy another EXPANDER RACK --- in fact, I would implement "voice-rollover" so that when the SOLARIS keyboard runs out of voices, instead of voice-stealing, the voices spill onto the SOLARIS RACK and, voila! More Polyphony.
That's my two cents for a forward look. I think a RACK would be easier to manufacture:
1) No Keyboard
2) No displays
3) No complex assembly
4) Ability to re-use my existing hardware investment (i.e. my MOTU firewire and M-AUDIO USB interfaces) so the RACK does not need a lot in audio I/O
BUT, you would need to get the SOLARIS to have that performance and capability

What would I spend on a rack like that? I would spend any where from $1500 (increment of 6 SHARCS) to $3000 (18 SHARCS) ... (well, economy of scale savings?) for a rack expander that would increase the SOLARIS capabilities. I know that it's nice not to run out of voices, and, there's no shortcuts to not needing extra hardware to run extra voices.
Comments welcome
