Those who got to try Taiko Wii 4 at the Tokyo Game Show noticed a few things in its demo songlist. (note: there were no screenshots as non-press members were not allowed to record videos or take photos at the show)
Variety
World is MineClassic
Hakuchou no Mizuumi ~still a duckling~ (Top Classic song in the Taiko Memories poll)
Game Music
KAGEKIYO (Hopefully with Ura mode!)
Smoky Thrill
Namco Original
Saitama 2000
The Carnivorous Carnival
Angel Dream (Top three in the Taiko Memories poll)
Tsukikage SASURAI
Senpuu no Mai (Ura? Or non-Ura? No one knows)
Wanya World
Heisei Taiko Kaidou ~Bachi no Onna~ (Namco revival, coming from Taiko 5)
Hyakka Ryouran
Nijiiro Yumeiro Taikoiro (another blast from the past! Previously on Taiko PSP1)
Buru-chan no Oyatsu (Not to be confused with Oya-2)
Scroll Mika
An additional, currently unnamed song for the Variety genre comes from the TV Drama show Salary Man NEO, but the 2ch user didn't remember its name (probably the newest opening song, Weapon of Choice, sung by Fatboy Slim). If those songs are confirmed, we would have 46 of the final 100 songs confirmed!
Other Wii4 news:
-) Blue Rose Ruin sounds unsettling, similar in vibe to Ao no Senritsu. The demo is in Muzukashii so no conclusions could be drawn about the Oni chart.
-) Danba Danba Din Dan by YMCK is in Wii4, but neither Miku no Shoushitsu nor Red Rose Evangel will be in it.
-) There's a random select button for costumes
And these rumors are for the arcade, which the public got to try as well during the 49th Namco Arcade Expo, held at almost the same time as the Tokyo Game Show:
-) There is a new selection screen for game modifiers which is also on the difficulty select screen, accessible by hitting the left rim on Kantan. Like on PSP DX, it'll be possible to choose a combination of game mods, separated into three categories, speed (Baizoku, Sanbai, Yonbai), note change (Abekobe, Kimagure, Detarame) and Doron (on PSP DX this is under the special category with Kanpeki and Autoplay but the arcade will not have those two mods). This is the first time the random note modifiers will make an appearance outside of PSP. 2 players can choose different mods in free play.
-) No more "50-hit Combo" voice sample in the new arcade. Score increments will occur every 10 combo as usual, and bonus points will be awarded every 100 combo (10000 points for reaching 100 combo?)
-) The Ura modes will be unlocked for each song individually, by hitting the right rim on the difficulty selection screen another 10 times after unlocking Oni. The icon for Ura looks like a blacker, darker version of Oni, and 1P/2P cannot choose Oni and Ura Oni at the same time (they either both choose Oni or both choose Ura Oni, this is to avoid discrepancies with full version songs)
-) Nijiiro Yumeiro Taikoiro (both the arcade and the Wii) will have a brand new notechart
-) Red Rose Evangel has 765 notes on Oni, while Madoka Magica's OP Connect will have 444 notes. The second 9mm Parabellum Bullet song, Atarashii Hikari, will have 999 notes like its predecessor and have more note streams.
-) Hatsune Miku no Shoushitsu -Gekijouban- is a little easier than Gekishou, but still material for 10*
