A lot of people disappointed. Some saying "you shouldn't have had higher expectations to begin with". Others saying "Nintendo won E3 with only one game" (being Smash Bros. this year). And a couple saying "Nintendo didn't show everything, 2019 will be amazing". Every year is the same.

If they show the new Yoshi but it isn't called "Fapping Island," then you don't get a point for that. ;)

Just gonna be lazy and make a table.

Smash 5, not a port

Fire Emblem 

Fortnite and Paladins 

Shin Megami Tensei V

Yoshi will be named Paper Yoshi

Octopath Traveller 

DLC for XC2, Kirby and Odyssey 

Tokio Mirage Sessions #FE

Third party exclusive games

New IP

Return of some old Nintendo IPs

Reggie gives us Mother 3

Edit: completely forgot about new smash fighters. So here they come:

Shovel Knight 

Crash Bandicoot

Bomberman

Shantae

Captain N the game master 

Sorry for not including images, but I'm lazy :P

Edit: *Fortnite

I don't mind not getting points or whatever, I'll just leave it like that :p

Well, here's what I've compiled...

Confirmed games/content that could be shown:
Smash (100%)
Yoshi
Fire Emblem
Splatoon 2 DLC info
Mario + Rabbids DLC info
Mario Tennis Aces (a launch trailer)
Octopath Traveler
FIFA 19 (EA)
Dark Souls Remastered

Potential:
Mario Odyssey update and/or DLC

Confirmed games that are less likely to be shown at the E3 presentation because we know enough about them (Treehouse/booth playability at best):
Crash Bandicoot N-Sane Trilogy
Wolfenstein 2
Captain Toad Treasure Tracker
Pokemon Let's Go Pikachu and Eevee

Confirmed games that are less likely to be shown at E3 that we know almost nothing about:
Metroid Prime 4 (TBA)
Bayonetta 3 (TBA)
Shin Megami Tensei V (TBA)
Pikmin 4 (TBA)
Pokemon Gen 8 (2019)

(Believable) Leaked games:
Fortnite
Dragon Ball FighterZ
Overcooked 2
Paladins

Rumored:
Animal Crossing (website overhaul, patents, pocket camp hints, interview info)
Mario Maker port
Star Fox Racing
Diablo 3
Fallout 3 Anniversary edition
A CoD game coming to Switch in 2018
Spyro Reignited Trilogy

It's almost as if all the potential games have been leaked for Nintendo's presentation since there are so many. I hope we can still get some surprises. I mean Animal Crossing would still constitute as a surprise I guess.

I'd really like to see a Mario Maker port, but what would be even better would be an enhanced version of the game with new features like slopes, higher maximum item limit, new baddies like charging chucks, and a better online infrastructure that tracks more stats and makes it easier to find levels and creators (something like the Mario Maker Bookmark site except built into the game).

Edit: Is there a reason why so many people are mentioning F-Zero? Did Nintendo hint at this at some point or is it wishful thinking? I was obsessed with GX for the longest time, and even had a local arcade (it was actually a bar at a local yacht club) that had AX, and I went there on a couple occasions to play.