One last bit of news for today, this time coming from Bandai Namco's main website. Though if no information about new downloadable Taiko content has been announced from the Taiko Team, the website's 3DS themes section has just added the voice for a new drumming theme!
Going by the name of Taiko no Tatsujin Medetai Version (太鼓の達人 めでたいばーじょん), this theme will be released next week, on March 4th. Much like the two already-released themes, this one is priced 100 Yen and doesn't feature any kind of custom background music or custom sound effects.