It's not certain whether or not the Switch will outsell the Wii, but it is bound to outsell the 3DS.
Because of the next-generation consoles coming soon, we may get the Switch successor sooner than we think; 2022 at the earliest, like I said.
I haven't gotten Super Mario 3D All-Stars, since they left out Super Mario Galaxy 2, and they also could've gotten Super Mario 3D Land to work on the Switch. Maybe they'll be paid DLC, or they make a sequel. I know Super Mario 3D World is coming to the Switch this February. Another great idea (for 2D Mario lovers like myself) would be New Super Mario All-Stars, which would include New Super Mario Bros., New Super Mario Bros. Wii, and New Super Mario Bros. 2 in one package.
Next year is both Zelda's 35th and Donkey Kong's 40th Anniversaries. For Zelda, they can bring the HD Wind Waker and Twilight Princess remasters to the Switch, since they were both held back by being on Wii U. They can also make The Legend of Zelda Game & Watch with full color screen. For Donkey Kong's 40th Anniversary, they can add Donkey Kong: Original Edition to the NES games on Nintendo Switch Online, which has all four arcade levels, and some extra animations. That version of the NES Donkey Kong originally had a limited release on the red Wii. Another thing to celebrate Donkey Kong's 40th Anniversary would be giving Arcade1up the license to make a Donkey Kong arcade cabinet, which can include Donkey Kong, Donkey Kong Jr., Donkey Kong 3, and Mario Bros.
If we don't get news on Challenger Pack #7 this month, then next month for sure. The delays must have been much more serious than they thought.