Apologies for the super-long post, but if people are interested, I'll re-arrange this information into tables, create a thread for it and update the thread in future.
Just making this thread because I was thinking about the old threads that use to keep track of what Nintendo's various EAD groups and subsidiaries are making. Now that EAD has been formed into EPD, it's more difficult to know exactly what each group are making. There's probably more flexibility between groups, but EPD still has a separate base in Tokyo that presumably make the 3D Mario titles.
What's interesting (and perhaps understandable) looking at the 2018 line-up overall is how little EPD are releasing this year - Labo 1 and 2 (maybe more in time for Christmas), presumably the 3DS and Switch ports of Captain Toad, Splatoon 2's expansion, co-developed Sushi Striker; and that's seemingly it. So a port, one new project (Labo), co-development on a niche game, and an expansion. Last year EPD released Breath of the Wild on Switch and Wii U, Arms, Splatoon 2, Mario Kart 8 DX, 1-2 Switch, and Super Mario Odyssey; as well as co-developing Samus Returns on 3DS, releasing Miitopia on 3DS, co-developing Fire Emblem Heroes on mobile and launching Animal Crossing: Pocket Camp. So five new Switch games, one new 3DS game, a new mobile game, and co-development on a further mobile game and one further 3DS game. That's versus Labo, a port, co-development on one game, and an expansion this year.
I say 'understandable' because EPD's total manpower is somewhere in the region of 750-800 staff (going by the headcount of EAD/SPD prior to their merger). Now the flexibility of EPD makes this difficult to figure out, but if you assume teams of 100-200 staff for major titles, plus manpower being used for prototyping, co-development/oversight, downloadable content support etc, then EPD can likely manage 4-5 major Switch titles in full development at a time, with several other smaller projects on the go.
Everything else is coming from Nintendo's subsidiaries - even the games confirmed or likely to launch in 2019 are, so far, coming from subsidiaries:
2018:
Bayonetta 2 port (Platinum)
Kirby Star Allies (HAL Laboratory)
Labo 1 & 2 (EPD)
Donkey Kong: Tropical Freeze port (Retro Studios)
Hyrule Warriors: Definitive Edition (Omega Force/Team Ninja)
Splatoon 2 - Octo Expansion (EPD)
Sushi Striker - (indieszero/EPD)
Mario Tennis: Aces (Camelot Software Planning)
Captain Toad: Treasure Tracker port (EPD)
Super Mario Party (NDCube - not confirmed but likely)
Pokemon Let's Go! Editions (Game Freak)
Super Smash Bros Ultimate (Sora Ltd & Namco Bandai)
2019:
Fire Emblem: Three Houses (Intelligent Systems)
Daemon x Machina (Marvelous)
Yoshi (Good-Feel)
Pokemon Generation 8 (Game Freak)
Mario Kart Tour (EPD)
TBD: Metroid Prime 4 (supposedly Namco Bandai Singapore/Tokyo - likely EPD co-developed), Bayonetta 3 (Platinum).
Nothing confirmed and no new games released on Switch yet: Next Level Games, Retro Studios, Grezzo, EPD team responsible for 'portable' Zelda
Have released titles on Switch but nothing confirmed currently:
EPD groups: responsible for Mario Kart 8 DX & Arms; EPD group for 'main' Zelda titles, 3D Mario team (EPD Tokyo?), 1-2 Switch EPD team, Splatoon 2 group (likely most staff moved to new projects with the expansion completed, free content planned til December 2018).
Subsidiaries/affiliated developers: Monolith Soft, Camelot, OmegaForce/Team Ninja, HAL Laboratory, indieszero
If we extrapolate from this, Nintendo have so far published (from their own or affiliated studios) 7 new Switch titles in each year, with 2017's line-up supplemented by 2 ports, and 2018's line-up supplemented by 4 ports. If you count Labo and Pokemon as 2 games each, then Nintendo are publishing 9 new Switch titles this year plus the 4 ports. So that's 9 Nintendo published/developed games in 2017 and 11/13 in 2018.
With the rate of published releases gradually increasing, and with Nintendo EPD somewhat quiet this year, I would expect a busier year next year. So far, we have four original games confirmed, all from subsidiaries and affiliated developers. I would expect another 8 Switch releases next year, with 3 of them coming from Retro Studios, Grezzo/EPD (Zelda remake or 2D title), and Next Level Games. That leaves 5 more potential releases - I would expect a couple of ports, a couple of EPD titles, and another affiliated game.