In no specific order I think we will get...
Um, I don't know, let me try something here, not including games with release dates we already know of.
Q1: the stuff we already know of
Q2: Persona 5 Scramble, Detective Pikachu 2, Zelda Collection (OoT+MM remasters), a new Nintendo-licensed indie game
Q3: Xenoblade X Definitive Edition, Metroid Prime Trilogy HD, a new IP that will go under the radar
Q4: Bayonetta 3, Pokémon Diamond/Pearl remakes, Zelda: Skyward Sword HD