First off, the official 3DS3 site is updated on May 27 with Story Mode Chapter 2 introduction and Namco Original and Classical picks in the song list, i.e. zero news for us. Moving on.
Now that we are two weeks away from release, maybe you are starting to look for trial versions. Good news do we have brought you today, because the trial version for 3DS3 will be released on the Nintendo eShop on June 15, one full day before the actual release. The trial version will let you play some of the Mystery Adventure mode along with some of the songs.
And if you are thinking to pick the game up via the wireless network, consider charging your eShop account early because you can purchase the download version and have it preloaded starting today (June 1). Preloading the game lets you have some of the data downloaded beforehand over these few days, and reduce the final downloading time on release date.
The rest of the below-linked post is just more about the already-known attracting points of the brand new game.
Source (nintendo.co.jp)