Metroid Prime 4: I think it has a very good chance. If the game is just as critically acclaimed as the original trilogy, (90+ Metascore), and has great marketing on a far more successful console than the GameCube and with a far bigger dedicated gamer audience than the Wii, I think it will be guaranteed.
Animal Crossing: This one will be a little tough. As it stands, Animal Crossing: New Leaf is set to become the best selling game in the series. (It's only ~160k short of Wild World's shipments, https://www.nintendo.co.jp/ir/en/finance/software/3ds.html, so I think it's guaranteed at this point.) And New Leaf will continue to sell even after it passes Wild World and eventually pass the 12 million mark. So, Animal Crossing Switch will have a tough battle ahead of it. However, there's a big X factor that could tip the scales in its favor; Pocket Camp. If Pocket Camp was able to draw enough interest and intrigue from people who had this as their first Animal Crossing game, that could lead to a new influx of fans to buy the Switch game and eventually become the best selling game in the series. Add that to the fact that the Switch has been home to various best selling games in series such as Zelda, 3D Mario, and Splatoon (not that hard to begin with), it is a good possibility.
Pokemon: Unless Gen 8 is a similar change up or innovation for Pokemon like Breath of the Wild was for Zelda or Odyssey for Mario AND we have another big phenomenon. I don't think this is going to happen. It may have a shot at 20 million and catching Gold/Silver, but 30 million and catching Red and Blue? Not gonna happen.
Hardware Comparison Threads:
Current Thread
Is Hardware Getting TOO Powerful?
Older Threads:
PlayStation/Xbox/Switch: 2022 Edition
PlayStation/Xbox/Switch Hardware Battle: 2021 Edition!
PlayStation 4/Xbox One/Nintendo Switch: 2019 vs. 2020
PlayStation 4/Xbox One/Nintendo Switch: 2018 vs. 2019
PlayStation 4/Xbox One/Nintendo Switch: 2017 vs. 2018
PlayStation 4: 2015 vs. 2016 vs. 2017