Public domain name registries connected to this name were filed by NetworkSolutions in October, 2020. A further registration with the gg domain was filed by Wizards itself in May 2021. The set was already hinted at in a public Magic survey from November 19, 2019 that featured multiple pieces of Planeswalker art with descriptions referencing a future Kamigawa. The setting is described as Magic: The Gathering's first science fiction plane.
Neon Dynasty is set in the current era on Kamigawa, more than 1200 years after conclusion of the original Kamigawa block in 3326 AR. The plane's feudal past has met futuristic modernity, with ninjas and samurai now carrying a cyberpunk aesthetic.
The set features the new planeswalkerKaito, a cyber ninja. The current emperor of Kamigawa is "someone familiar."