Okay, so if this is real then it's pretty huge.
AoCF leaker dropped quite a lot of stuff.
I'll just summerize.
The leaker first heard the rumor of a certain doujin music circle is arranging Touhou music for Smash back in April at Nico Nico Chokaigi.
The leak he claimed earlier was all his fantasy from the actual information he has and other random talks from random people.
He said that he DOESN'T know Reimu is in or not, but the rumor IS specifically about Smash and due to the amount of contents it carries, he believes that she will be represented as a playable character.
Also he admitted that the rumor is still present today.
The information he has is the list of music.
Here it is.
Theme of Eastern Story
Maiden's Capriccio (he doesn't know which one)
Mystic Oriental Dream (not sure typo)
Spring Lane
Dichromatic Lotus Butterfly
Akutagawa Ryuunosuke's "Kappa"
Last Remote
Spring of Dreams
The Venerable Ancient Battlefield
Emotional Skyscraper
Shoutoku Legend
Inchlings of the Shining Needle
Sunny Milk's Scarlet Mist Incident
A Star of Hope Rises in the Blue Sky (it said 1st stage theme of HSiFS)
The Ground's Color is Yellow
Shinkirou Theatrical
Neo Bamboo Forest in Flames
Unknown X
Necrofantasia
Night Falls
Battlefield of the Flower Threshold
The Concealed Four Seasons (it said 2 final boss themes of HSiFS)
Secret God Matara (Okina Matara's second theme)
This list of music is very... interesting. I'm not sure how to feel about this.
The leaker also said there will be no Marisa themes and not only ZUN originals.
The fantasy he made was mostly from this list of music.
And the image he uploaded earlier was from Twilight Frontier so probably it's for Touhou 17.5.
Lastly, I think this was the biggest bomb drop.
The Touhou in Smash rumor goes something like this.
Doujin circle "hmm-hmm Koubou (Atelier)" who's known for their orchestral arrangement is doing works of Touhou music remixes for Smash.
TBH, the leak itself sounds bull**** but I'm frankly surprised by he actually name dropping certain doujin circle. Pretty risky move here,