I don't know about you, but it don't remember it being ever announced outside of speculations. Either way here are the games:
- Xenoblade Chronicles: Definitive Edition – Comes with bonus epilogue chapter "Future Connected". Coming out May 29
- Bioshock the Collection – All three games in one. Coming out May 29
- Borderlands Legendary Collection – 1, 2 and Pre-Sequel with all the addons. Coming out May 29
- XCOM 2 Collection – Coming out May 29
- Marvel Ultimate Alliance 3 Black Order – An expansion pass featuring Luffy from One Piece. Available now
- Shinsekai: Into the Depths – A 2D Metroidvania(?) set in underwater post apocalypse setting. Available now
- Animal Crossing: New Horizons 1.1.0 Update – Added Easter Bunny and items
- Good Job! – A Untitled Goose-like game where you wreck an office. Available now
- Catherine: Full Body – Coming out July 7
- Ring Fit Adventure update – Added Guitar Hero and running mode. Also new voice options for the ring assistant. Available today
- King's Bounty 2: A strategy RPG. Coming out 2020
- Super Smash Bros Ultimate – Next fighter is from ARMS. Which one? The one with long arms. Will be revealed in June, probably at E3 Direct. Also it will come out with a delay.
- ARMS – Remember that game I just mentioned? Me neither. It is free to play from 3/26 to 4/6 for Nintendo Switch Online Members only.
- Bravely Default II – Demo available right now. Coming out 2020
- Club House Games: 51 Worldwide classics – 51 tabletop games. Coming out June 5
- SlimShadala Ninjala – A ninja arena game. Coming out May 27
- Star Wars Jedi Knight: Jedi Academy – Available now
- Star Wars Racer – Coming soon
- Panzer Dragoon: Remake – Available now
- Trials of Mana – Coming out April 24
- Fuser – Guitar Heros, but you're the DJ
===! WARNING ! ENTERING TODD ZONE ! WARNING !===
- Elder Scrolls Blades – Delayed until Spring. I've never doubted you Todd.
===! WARNING ! LEAVING TODD ZONE ! WARNING !====
- Warhammer 40,000: Mechanicus – XCom set in W40K. Mandalore select. Coming out May 2020
- Vigor – Some Survival FPS that looks quite nice for Switch standards. Closed Beta begins April 9
- Burnout Paradise Remastered – Coming out 2020
- Saints Row: IV – Re-Elected – Coming out March 27 2020
- The Legend of Heroes: Trails of Cold Steel III – Some JRPG with FFX combat. Coming out June 30
- Mr. DRILLER DrillLand – Something in between Boulder Dash and Puyo Puyo. Coming out June 25
- Minecraft Dungeons – Coming out Spring
- Pokemon S&S Expansion pass – Cubfoo evolves and receives a unique move depending on what dungeon your pick. Those being Tower of Darkness (Single Strike Style) or Tower of Water (Rapid Strike Style). You may only take Cubfoo into those. Starter's Megamax moves do not trigger enemy abilities. The Isle of Armor is available at the End of June, The Crown Tunder will be out by Fall. If you preorder the pass you will receive the privilege to dress like a massive dick. Also Toby Fox was playing on a trumpet entire time