I note you're asking for input on the poll, not overall on what product to build, but I'll give my thoughts anyway since spouting off personal preferences is what head-fi is all about
(just jokes, people, just jokes!).
It seems you're going for another Drop/Sennheiser-specific product. What I'd love to see is just a clearer stripped down line-up, so you can focus resources on fewer products (and it make it easier for all of us to choose which to go for). There seems to be so many iFi products coming out and a lot of confusion amongst people about which to buy, or even in the microDSD signature thread people holding off because they thought with the Diablo around the corner they should just wait. So I wonder how many will just hold off from current or future products because they figure there'll be another new iFi product just around the corner anyway. A simpler line-up will provide a bit more surety to users, and presumably allow iFi to concentrate on making each product as best as possible to stand out from the crowd.
I'd vote for:
* A truly portable/entry product: hip-dac style, with Bluetooth input but also USB for use with a phone or computer, and also analogue input for amping like the xCAN.
* One transportable product: essentially a step up from the portable product, a bit bigger and better spec'ed, a la microDSD - but just one version! Bring back analogue input!
* One lower level desktop product: instead of Zen Dac, Zen Can, Zen Dac Signature, Zen Can Signature, Neo, just have one Neo-style product. As commenter mentioned above, it should have the same power or more than the transportable product. Just combine all the functionality of these products into an all-in-one.
* Moving up the scale maybe there is room for a mid-tier desktop product, as there's currently a big jump between the Neo and Pro iDSD models.
I feel like the microDSD really helped launch the iFi brand and it worked because it was a well-thought-out product that offered a lot of versatility and functionality, and because of that it remained an attractive product for a long time after it's initial release. Would love it if companies in general (not just iFi) went more with this approach. Obviously, I don't run a company and maybe the many-new-products model is working well for business, since everyone seems to buy out of FOMO. But you know, the world is burning, so less products that stay top of the line for longer would get my vote.