This sounds very interesting to say the least and if it is possible to implement this in the A-110-6 that would be great and probably worth the extra wait.

From several articles read it seems that Thru-Zero FM and Triangle modulation opens up major sound timbre possibilities and probably even better when done in the analog domain.

Hardware implementations of DX-7 algorithms sounds very interesting or Supersaw, originally from the JP8000 implemented with 7 detuned waveforms and a high pass filter, would probably be possible with several techniques combined.
For sure all very interesting developements to explore in the analog domain :)

p.s. a deeper analysis of the original supersaw "hardware" implementation can be found here: https://www.nada.kth.se/utbildning/grukth/exjobb/rapportlistor/2010/rapporter10/szabo_adam_10131.pdf (discussion @ page 31)