One bit of news that has made the rounds of gaming in the past month was the upcoming closure of the Nintendo eShop platforms for Nintendo 3DS and Wii U systems worldwide, meaning that no further additional purchases of any kind will be allowed after this coming March 27th.
For the time being, it will still be possible to use the platform afterwards to both update digital/packaged games in your possession and re-download eShop content (games/DLCs) that were already purchased before the store fronts' ending. This means that we're at the final raw call for Japanese-systems-owning donders to catch whatever piece of (the still available) DLCs they're missing for the trilogy of Japanese Taiko games on both systems.
For the time being, it will still be possible to use the platform afterwards to both update digital/packaged games in your possession and re-download eShop content (games/DLCs) that were already purchased before the store fronts' ending. This means that we're at the final raw call for Japanese-systems-owning donders to catch whatever piece of (the still available) DLCs they're missing for the trilogy of Japanese Taiko games on both systems.
As a post-script addendum, we remind you that the digital versions of both 3DS and Wii U games were already removed from the storefront beforehand, and that its former purchasers can still be able to redownload if these were already bought when they were available, alongside all their respective single/bundled DLC deals.
Source (Nintendo of America eShop Discontinuation Q&A)
Source (Nintendo of America eShop Discontinuation Q&A)