datamine comes from Twitter user Ninji, who Animal Crossing Items states that while code exists for some of unreleased capabilities, this may honestly be leftovers from cancelled content material. Still, the code hides a few intriguing secrets which you may want to avoid in case you are wary of spoilers.
Ninji’s efforts have dug up evidence of new museum improvements for the game, as well as artwork sections for all three degrees following the tent.
There additionally appears to be standalone buildings – a museum Buy Animal Crossing Items store and museum cafe, the latter of which includes a Gyroid section.