My first page predictions were somewhat unrealistic.
Let's place some monthly predictions here. Im going all in on the fact that they will have either a 1st party or licensed/partnered 3rd party published game each month.
Jan: New Super Mario U Deluxe / Travis Strikes again.
Feb: Yoshi's Crafted World / FF12
Mar: Paper Mario Color Splash port (I know YOU don't like, but many will)
Apr: Daemon X Machina
May: Fire Emblem Three Houses
Jun: Town
Jul: Nintendo Puzzle Collection Remaster / New Puzzle League compilation / FF X/X-2
Aug: Pokémon Trading Card Game (FINALLY!) / FFVII / FFIX
Sep: Luigi's Mansion 3
Oct: Pikmin 3 / Wonderful 101 port / Marvel Ultimate Alliance
Nov: Pokémon 8 gen / FFVIII FINALLY REMASTERED TIMED CONSOLE EXCLUSIVE FOR SWITCH
Dec: Animal Crossing
GameFreak is going to have massive year with three titles releasing and each one selling a lot.
Pokémon / Animal Crossing 1-2 punch on holiday season is going to drive Switch sales again into new records, topping even Wii 3,8 million december record in U.S.
Many people will complain about the lack of hard hitters in first half of the year, again. Yoshi, Daemon X Machina, Fire Emblem and Town will however each sell over two million copies and Super Mario U Deluxe will hit that magical 10 million game mark.
Games that will be revealed for 2019 and beyond throughout the year are
New Paper Mario (In development by new talented team)
New Brain Age, Pushmo, Warioware and Mario vs. Donkey Kong titles (2019/2020 Pushing downloadable titles along with SNES games on Switch Online)
Pikmin 4 (2020)
New PlatinumGames IP (2020)
New Monolith Soft IP (In development)
No Retro game revealed even next year
Exclusive Ridge Racer
Mario + Rabbids sequel
Games confirmed for 2020
Metroid Prime 4
Bayonetta 3
Metroid Prime trilogy remaster
edit: Forgot to add the FF -games into monthly predictions