Nintendo and Nippon Columbia just announced three soundtrack releases for Animal Crossing: New Horizons (via Perfectly Nintendo). These cover the background music, K K Slider songs, and even the live performance that was released online last year. The soundtracks will release on June 9 in Japan physically. The soundtrack pictured below is the four disc release that has all the background music and seasonal music.
Animal Crossing: New Horizons soundtrack price and track list
The Animal Crossing: New Horizons BGM Collection (173 tracks) is priced at 4,950 Yen and the track list is here. The Animal Crossing: New Horizons Totakeke Music Collection (95 tracks) with K K Slider songs is priced at 4,400 Yen and the track list is here. The special edition with both albums and extras including a special box and artworks set is priced at 11,000 Yen. Pre-orders are now live on Amazon Japan here. It is worth noting that the product listing mentions that orders for this cannot be cancelled once placed.
Animal Crossing: New Horizons soundtrack digital download release
As of now, a digital release has not been announced. Hopefully Nintendo does give the soundtrack a digital release on iTunes at least if it will not be added to streaming services.
Animal Crossing: New Horizons is now available on Nintendo Switch. Read my review of it here.