A while back, a Wii U firmware update contained some baked-in text referencing a Miiverse shutdown. Now, Nintendo has officially confirmed a shut down date for multiple Wii U features in Japan, including Miiverse.
Nintendo announced that on November 8, 2017 at 8 PM, the Japanese Miiverse will be shut down for good. The full list of games that utilized the Miiverse, including Mario Kart 8, Super Smash Bros . and Splatoon , are listed on the official Japanese announcement page.
Also included in this shut down are the TVii and Wii U Chat applications, which while not as popular as Miiverse were attractive components of the Wii U feature set. So far, the November 8 shutdown date for these services is Japan-only. As per usual, once something goes in Japan, it’s only a matter of time before other regions follow suit.
With Nintendo’s online service for the Switch still not fully launched, it’s a shame to see popular services like Miiverse phased out beforehand.
Source: GameSpot