More importantly to me....will we ever see the Sequential name on anything again?
That is an intriguing question. Could the name be reserved for one and only one instrument? It seems absurd. I suppose the Toraiz AS-1 could be partially regarded as a Sequential instrument. But what about an all-new instrument? And must Sequential remain a backward-looking line of synthesizers and DSI the forward-looking one?
I think ever since the Prophet-6 there was simply no reason to use the Sequential name. I guess it could have been used for the OB-6 for technical reasons, since the OB-6 was based on the topology of the Prophet-6. With regard to content, though, using the name DSI in conjunction with "Tom Oberheim" first emphasized the latest names of the designers' companies (after all, DSI is newer than Sequential) and second it also drew more attention to the two individuals Dave and Tom.
As the REV2 is an upgraded Prophet '08, the name DSI was mandatory. That pretty much only leaves the AS-1, for which the Sequential banner could have been rightly used due to it being related to the Prophet-6. But I assume, since DSI is still the main or general name of the company, they choose it for collaborations. It would also be confusing if one Toraiz product carried the name DSI and the other the name Sequential.
If we're ever to see a VCO mono synth from Dave Smith, I would say it will be through the Sequential concept. Perhaps a Prophet 1?
Well, we just saw a new monosynth like that and it's called the AS-1. And the official answer to a reissued Pro-One was the Pro 2, which is much more powerful and runs circles around a Pro-One both in terms of features and sonic flexibility. So the two extremes of a monosynth - one based on the Prophet-6 voice, one forward looking powerhouse - have already been released.
It would make little to no sense to design a third monosynth whose novelty only lies in combining the engine of the AS-1 with a housing that's similar to that of the Pro 2 in terms of size, especially since the market is already pretty saturated with VCO-based monosynths. Plus: the Prophet-6 can also already be used as that kind of monosynth with a generous keyboard. Releasing just another monosynth version that wouldn't offer anything substantially new inside would also most likely cause the then not unjustified reaction, "they're running out of ideas."
As for next designs: This is getting harder to predict, especially since the whole market situation changed significantly over the past couple of years and even months. With an increasing number of low-, mid-, and high-price competitors around who also release or start to release analog or hybrid polysynths, innovative functionality and features become more and more important in order to come up with a product that's different and unique enough. That can happen on a rather subtle level like the inclusion of new technology (an example would be the use of FPGAs in the PEAK), or on a conceptual level that provides a different take on the topology of a synth voice. While I'm not saying that we need an Evolver REV2, an instrument in the spirit of the Evolver or something like a West-Coast-inspired polysynth that chysn once insinuated would certainly cater towards a different take on the conceptual side.
An eccentric or overly experimental design, however, is not always without any risks either, as especially the Prophet '08, the Prophet-6, and the OB-6 proved that people are definitely more into simpler engines. It was never really a question, for example, whether the Poly Evolver or the Prophet '08 was the bestseller.