
Well I never thought I'd ever see another Touhoumon game... but it's not just another ROM hack, but a full CD release! The trial was released in physical form only at C86 and with a full version in Physical and Digital at C87 this winter. (if what I read is correct.)
The graphics and the development are done by Hemogurobin A1C, music by Shion, and the game is published by FocusLens. If they sound familiar that's because all three of them are responsible for Touhou Rhythm Carnival! (Which if you haven't you should totally buy!)

Picture of the title screen.

I'd say it's safe to assume PC-98 characters will appear, Kana here proves that.

This is the battle screen and it's very different from what the ROM hacks look like. Also DDC characters should make an appearance as well, hopefully more then just Sejia. (I need my stage 1-3 bosses!)

The trainer intros are similar to how Pokemon X & Y do it, also the portraits are just adorable!
GameplayWhile I haven't played the game myself but after watch the two videos here:
https://www.youtube.com/watch?v=Rw6Glgi9rFwhttps://www.youtube.com/watch?v=NeqwchigZdkYou get the basics on how it works. While I know not what types are in the game (can't read Japanese very well) I do know types are still in the game and might be the normal typing and not the new Touhoumon typing. (Like soul and heart.) EDIT: I think it's the new typing actually, I watched a few different videos and the colors used might suggest the 1.8 touhoumou types.
A big difference is that attacks have been redone and are all animated to be more like danmaku, as seen here and in the video:

Also I should mention that the way you get exp is similar to how X & Y also distributes exp.
Story... No idea. All I can figure out that a new incident occurred and these "Dolls" began appearing. Also you can pick between a boy or a girl and they look to be original characters but I don't have a picture of then unfortunately. For those that want the story you can try to figure out what it says:
?異変?
――それは、唐突に起こるもの。
桜が散り、農夫が田植えの準備に取り掛かり始めた時期のある日、
幻想郷にまた新しい異変が起こった。
突如として現れた、人・妖怪・妖精、どれにも当てはまらない存在。
それは見た目から?人形?と名付けられた。
人形はどこからともなく現れ、自由気ままに行動する。
幻想郷中に溢れた人形たちは、次第に悪さまでするようになった。
中には幻想郷を維持する、大結界に影響をおよぼす人形まで??。
人形には人形でしか対応できず、みな人形を持ち対処を始めたが、
それでも人形の増殖は収まらない。
博麗神社の巫女である博麗霊夢も人形で解決しようと動き始めていたが、
その糸口はなかなか見当たらなかった。
――――――――
季節は夏。
暇を持て余していた人間がひとり、
何かと噂の絶えない廃神社へと足を向けていた。
博麗神社というらしい、その神社に向かうバスの中で、
人間は不思議な夢を見る。
「――あなたは 幻想郷をご存知かしら?」
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So... I'm really freaking excited for this one! I tried to play one of the many touhoumon games but now that we are going to get a full release version I'm so willing to buy it. What do you all think? (trying to type this at night is so exhausting i had to finish it in the morning xP)