Once upon a time, I was known as NostraDOOMus. It's time to get back in the saddle. EDIT: Adding specificity to some of these because I don't want to be the dude predicting things won't happen.
1. All but confirmed, I expect Hi Fi Rush will be announced, maybe even shadow dropped at the next Nintendo Direct. (I'll take half credit if both don't happen)
2. Metroid Prime 4 is the last major Nintendo-published Switch game, set for a cross-launch with the Switch Successor. This means it might not even come out until 2025. (Does this count as a 2024 prediction? NOT-releasing in this year?) The prediction: Metroid Prime 4 is seen this year, in gameplay and cinematics. It may not release in 2024, but it will be on the Switch. Nintendo uses their weird honor code for having announced the game as a Switch title and keeping that promise.
3. The Switch Successor is announced to be backwards compatible this year.
4. With Pokemon Bank going offline, the GB/C App gets Red, Blue, and Yellow. I'll go one step further and say these are announced around Pokemon Day this year, and Gold/Silver/Crystal will come later in the year. I'll go ONE STEP FURTHER and say Ruby/Sapphire/Emerald come to GBA Expansion owners and FireRed/LeafGreen will come later in the year. They will be structured as such so non-Expansion owners don't feel cheated out of playing the "inferior" Red/Blue/Yellow in place of FireRed/LeafGreen.
5. Pokemon gets a *new* spin-off this year. It's not exactly like the core games, it's not a remake, it's definitely not Legends-tier. But it's something. I wouldn't be surprised if it was developed by ILCA.
6. The next 3D Mario is a launch title for the Switch Successor. Prediction: It is announced/seen this year.
7. The Switch Successor gets a Xenoblade Chronicles X port. Prediction: It's announced this year?
8. THE LAST STORY is a late-game Switch Port, baby! (Maybe a tease of a sequel on the Switch Successor?)
9. Kirby gets some big-ol-minigame extravaganza. Think Mario Party, but Kirby.
10. There is a Princess Peach Showtime! Amiibo. It is stupid. Starting to regret this one.