I don't know about TGAs. I don't know that they announce anything but with so many rumors and games that are in active development I have to wonder when they'll be able to release all of these games.
There are the confirmed titles: Mario 3D World, Detective Pikachu, Pokemon Snap, Bravely Default 2, Smash DLC and Shin Megami Tensei III + V. The games that are likely to show up: Zelda Collection, Mario Golf, Pokemon Remake, Goodfeel's game, and the Breath of the Wild Sequel. Then there are the wild cards; things we believe/know to be in dev: Bayonetta, Fire Emblem Remake, Kirby, 2D Metroid, 3D Mario, Arms 2 (?), Splatoon, Metroid Prime Trilogy, Monolith's next game etc.
I think the next two years could potentially be pretty packed.
Depending on how badly covid threw off development April-December 2020 could be bigger than 2017.