Soundwave on 23 January 2017
Will be at E3 most likely. My guesses
April - Mario Kart 8 Deluxe
May - ARMS
June - Splatoon 2
August - Super Smash Bros. Deluxe
October - Fire Emblem Warriors
November - Super Mario Odyessy
December - Pokemon Stars
Something like that for the rest of the year. Pikmin 4 will get moved into 2018, joining Fire Emblem Switch.
