Now that would be the WORST possible thing ZUN could do. An ultimate middle finger to what all mystery stories stand for, as if the genre hasn't been disrespected enough in this manga...
Like, it's not the first time either. All the mentions of potential characters that only have that... a name (ex: Tenma, Konpaku Youki...) and Zun never brought them up ever again. Sure, Youki is a
male which would be almost blasphemous to Touhou Project to have a major character that's male (not counting Rinnosuke which isn't a major character that was part of an incident) and Tenma is most likely male as well. I'm surprised that Zun revealed Yuuma Toutetsu after only mentionning her by last name in WBaWC.
Don't get me wrong.
I WANT ZUN TO EXPAND MIIZUCHI'S BACKSTORY AS MUCH AS YOU DO. The fact that this whole manga will end in a status quo as always (Reimu will have her Shrine back - as seen in Lotus Eater (whether or not this is the
new one or the old one is unknown and that fucks with my head) and I really wish that Zun would actually make something happen that'd have serious repercussions that would change the dynamic of his world. Coming back to the status quo each time is boring AF.
As for the genre argument, clearly, he went into this not taking it seriously...