This information comes from Nintendo president Tatsumi Kimishima…

During fall of last year, we brought back the nostalgic Super Nintendo Entertainment System as a palm-sized home console. Super Nintendo Entertainment System: Super NES Classic Edition has reached 4 million units in global sell-through.

We have announced that we will resume production for NES Classic Edition this year. We plan to continue selling NES Classic Edition and Super NES Classic Edition this year. We view them as an opportunity to garner interest in Nintendo Switch from those who have not interacted with video games in a long time, or ever.