Having said that, I do expect general compute to be more of a focus with Volta than Maxwell or Pascal. They've more or less said that.
Indeed, I wasn't speculating; They've announced it publicly in livestreams and at events. Anyone expecting a similar gaming performance increase as Maxwell > Pascal is dreaming because Volta is already here and the architecture is already known. The only unknown is exactly what configuration that architecture ends up as in the gaming products.
Outside of Machine-learning situations, its performance is roughly on-par with Pascal, given the shader counts and clockspeeds. It's actually only 1.25x faster than the Tesla P100 in graphics processing tasks, but that is not likely to be because Volta is inferior to Pascal for graphics - it's more likely to be that there aren't 50% more texture units or 50% more memory bandwidth than the Pascal version.
With respect to gaming, I would expect Volta to be little more than a shift to TSMC's 12nm process. Expect eventual reduced manufacturing costs for Nvidia. Whether they pass those on to the consumer is another matter. It's possible that the shader count will increase slightly as Volta's shader count is 50% higher than the Pascal equivalent Tesla, but the die area only grew by 33%. In saying that, shader units don't make up the entirety of the GPU, so the shift to Volta's 12nm process actually only allows single-digit-percentage improvements over Pascal.
I'd like to be wrong, I'd like to see Nvidia pull the proverbial rabbit out of the hat and produce a huge improvement over Pascal, but there is an overwhelming amount of evidence from existing Volta products that show it's not going to happen:
12nm is a known quantity in terms of clocks and power usage.
Volta Architecture is a known quantity in terms of where the changes to Pascal lie.
Volta's transistor density is a known quantity.
Add those things together and the big reveal of Volta gaming GPUs isn't really going to reveal much. Performance/$ is going to remain unchanged, power usage is going to remain unchanged, Clocks are going to remain roughly the same, and shader count may increase by about 10% but at extra cost to Nvidia (which they will pass on to the consumer).