Apart from the people who frequent this forum where are all the other "buyers that are out there" ?
The numbers generated by your poll are obviously from the converted, meaning that in general terms they are pro the game albeit with some understandable misgivings here and there, nothing to do with WIN10. So the 16% know about the game and don't have to be converted to it. "Those out there" are NIL at the moment. What is going to galvanise them or even inform them. Is it just that a "new" game will appear in the console online store ?
Whether you have many clients or a few you have to maximise what you have.
Where are the other buyers who are out there that aren't tuned in here? Well, according to SteamSpy, there are between 19,000 and 23,000 owners of JNPG out there right now. I don't know how to factor what happened here in this poll to the other 18,893 (minimum) current JNPG owners who didn't vote in this poll. Since they don't sign up, or don't bother to vote in a message forum poll, they're probably less likely to have as passionate, or as clearcut an opinion on it. I play people in the lobby who aren't members of this forum and act like they don't know what I'm talking about when I reference it.
I don't really know how the Microsoft store markets its PC games because I rarely shop for PC games there. I know it will get headlines at gaming webzines because it'll be in the Microsoft store, and that should give it a lift out of the gate. Better yet, if it's released simultaneously with the XBox One version, that conjunction alone will generate some interest, as cross-play is an emerging trend. XBox Live does a pretty good job of presenting new games. I think JNPG will benefit from this.