Nintendo has confirmed today that the Nintendo Zone and Nintendo 3DS Stations will end this month in Japan. The Nintendo Zone stations were initially set up to distribute demos and downloadable content for the Nintendo 3DS, but times have changed. The Nintendo 3DS stations were found in stores etc and where used for promotional content but since the Nintendo Switch has taken its place they are being scrapped. Both the Nintendo Zone and Nintendo 3DS Stations will be phased out on the 28th of this month.
Thanks to smaa6786 for the news tip!