Honestly, I'm not sure what SCI will be doing next... only thing I know is that it is probably something that Dave has not been doing and is not giving much competition to the other devices he's made... because that seems to be the norm here... they overlap, but all synths have something unique... thus I'm not that certain an all analog discrete VCO/VCF synth is in the horizon right at the moment... OB6 and P6 covers enough ground on that.
Also, just changing something like the filter chips (Evolver replica) I do not see as the next step really... unless it has tons of new stuff that simply sets it apart.
But one thing I think that SCI should probably think more about in the future, is their FX section... it's simply too limited compared to other synths capabilities like the Quantum, One and DeepMind12 etc... they need more FX slots, more routing capabilities and better FX (more of them) to beat the competition... so even if people think they would not colaborate, I'd highly suggest SCI to do just that on the FX if they cannot deliver the quality and flexibility themselves... I'd peronaly like to see them make a deal with Valhalla DSP for example... they would be able to deliver on the FX department.
I could see a need for a degraded version of their new flagship though... one that takes focus only on sample use, discarded the digital oscillators, and maybe even cut the voicecount down to 8 to reduce cost, leaving stereo capability out... if you're a sound designer you can easily create stereo depth even if the samples are in mono... with an improved FX section it would be even more easy to do... stereo samples are cool, but absolutely not essential in any way... in fact there are advantages to using mono samples as well for sound design... especially looping of samples is a hell of a lot easier with mono samples (unless you use crossfading of course).