Switch 2 is in a tricky spot, as TOTK and Mario Bros Wonder released just two years ago, while the Odyssey team is about to release DK Bananza, so it might quite some time before we get a brand new entry in either series.
Given how long its taken them to make TOTK/Bananza I don't think we will see a new 3D Mario or Zelda until the 2030s.







