I recently saw a Touhou iceberg that claimed "Touhou 20 will be the last game". Of course, the chance that this is actually true is very unlikely but it got me thinking: For how long with we be getting new official content?
First, let's get this out of the way. I strongly believe that even if Zun stops making games, music and manga, the community can continue to supply new content indefinitely. From games and manga to original characters and stories, I think that this community can create anything to keep itself going.
But let's get back to the original question. If I remember correctly, Zun has stated in an interview that he's going to work on Touhou for as long as he feels like, which is good. I'd say that Touhou still has a lot of potential to evolve even more and further explore the lore of already existing characters while introduting new ones. But let's say you had to guess for how long will we be getting new official content from Zun, what would your answer be? I personally think that it's going to be for around 8 to 10 years, but that's just a speculation based on nothing but random thoughts I've had.
Now let's talk about the official content itself. New games are releasing just fine, thought Touhou 19 sparked a lot of controversy as you might know. A new chapter of Foul Detective Satori is being released every month, same with Lotus Eaters. The only complaint I have is that we haven't gotten a new "proper" CD in over 7 years since the latest one only has 3 tracks, but I don't mind it that much. So, for how long do you think we're going to be getting new content? How do you think the Touhou Project is changing and how much do think these changes are going to affect its longevity?