That was a veritable fuck load of games
3DS
WarioWare Gold - Aug. 3
Dillon's Dead Heat Breakers - May 24 [eShop]
Mario and Luigi Inside Story + Bowser Jr's Journey - 2019
Detective Pikachu - March 23
Luigi's Mansion for 3DS - 2018
Switch
Kirby Star Allies getting free character updates starting March 28 (Rick, Kine and Coo, then Marx, then Gooey)
Okami HD - summer 2018
Sushi Striker: The Way of Sushido - June 8 [also on 3DS]
Octopath Traveler - July 13 [demo available now]
Travis Strikes Again: No More Heroes - 2018
Dark Souls Remastered and Solaire of Astora amiibo - May 25
Mario Tennis Aces - June 22 [prelaunch tournament planned ... sometime]
Captain Toad: Treasure Tracker - July 13 [also on 3DS]
Underdale - sometime?
Crash Bandicoot N-Sane Trilogy - July 10
Little Nightmares: Complete Edition - May 18 [Pac-Man amiibo functionality]
South Park: The Fractured But Whole - April 24 [DLC packs one and two April 24, DLC pack three later in 2018]
Hyrule Warriors Definitive Edition - May 18
ARMS tournament now through March 18, Global Testpunch for three days starting March 31
Splatoon 2 version 3.0 coming late April, 100-plus new pieces of gear, three stages (Piranha Pit, Camp Triggerfish, Wahoo World), Rank X higher than Rank S, Callie appears in Octo Canyon
Splatoon 2 first paid DLC: Octo Expansion, campaign with playable octoling that's usable in multiplayer - summer 2018 for $19.99 [purchase early on eShop now to get octo headgear and clothes]
Super Smash Bros. - 2018 [playable Inklings]
Although to be honest the only games I am kinda interested in are Dark Souls and Octopath, don't really give a shit about Smash Bros or the ports of games I already own (South Park, Oakmi, Undertale, etc) although it is cool for kids that they are getting such a big library of decent games for on the go.
I wonder why they don't release Luigis Mansion and Warioware for switch