Okay.
Confirmed
-Kirby
-Yoshi
-Fire Emblem
Probable
-Animal Crossing
-2D Mario - Either a new 2D Mario game or a Mario Maker enhanced port.
-Travis Touchdown Game
-Project Octopath Traveller
-SMT5
-Pikmin 4 - Miyamoto talks about it all the time so I'm just assuming that it releases in 2018
-Retro's game - They'll have had 3 years of development time by the end of 2017 (if the rumors of them only getting approval on their next project at the end of 2014 is true)
-Mario Partay
-Wario Ware
-Whatever FromSoftware is working on - Might be a port. Might be a paid exclusive. Who knows.
- Smash 4 port or Smash 5 - If we don't get a Smash 4 port (which I'm increasingly thnking is not coming), we'll probably be getting Smash 5. DLC for Smash 4 ended at the beginning of 2016 and close to three years will have passed from then to the 2018 holidays (about the same amount of time it took for two versions of Smash 4 to complete). There were rumors of Bamco hiring people for a future Smash Bros game and this might be the reason. Nintendo will also need a huge game to cover the holidays in 2018 if Pokemans isn't going to make it by then (and I don't think it will). Animal Crossing is a bonified system seller but it's not going to make the right kind of splash for E3. Smash 5 can make that kind of splash. I believe that if it's coming, it'll be announced during a big direct close to the beginning of 2018 and will be what Nintendo designs their floor stage around at E3 like they did with Mario Odyssey this year and Breath of the Wild last year.
Guessing - Either late 2018 or 2019
- Metroid - I'm guessing Metroid Prime 4 for fall 2018 but that's on the assumption that development for it started at the end of 2015/early 2016. That would give 3 years of development time.
- Sakurai's game - Sakurai said he had his next project lined up even before he finished the last wave of Smash 4 DLC. That would give him around 3 years of development time as well if it's a fall title.
Probably 2019
-Pokemans - I say Pokemans in 2019 because GameFreak always comes late and HD development will probably delay them for an extra year.
-Platinum's game
-Bayonetta 3 - Just a hunch.
