I'm only going to cover new or unveiling of announced games, not ones already unveiled.
1. Animal Crossing unveiled with TBD 3rd/4th quarter 2019
2. 3 indie games we've never heard.
3. Super Mario Maker 2.0
4. Another Wii U Port to Switch
5. Luigi's Mansion 3 unveiled and launching Halloween.
6. Fire Emblem Switch unveiled, TBD second half 2019
7. Either a new Mario and Luigi, Paper Mario, or Super Mario RPG 2 (IT COULD HAPPEN!)
8. Whatever the heck Retro is making will be revealed at last. A very western game. Perhaps the Halo of Nintendo?
9. Advanced Wars Switch
*Bonus for the lulz*
Final Fantasy XVI to the Nintendo Switch 2.0, launching in 2022 as a game launch exclusive.