https://www.gamespot.com/articles/nes-classic-edition-returns-to-stores-next-year-ni/1100-6453270/

Alongside plans to expand on the planned availability of the SNES Classic Edition, Nintendo has announced that it will revive last year's NES Classic Edition. Assuming you haven't yet resorted to buying the system at an exorbitant price, you'll have a chance to pick one up at retail price in stores next year.