Want to see Neo, a new Wipeout. A Kart game on ps4 (modnation or new IP). Elderscrolls 6 would be nice to see too.
Western release date for Persona 5, more dreams info, and a remoteplay app for my android phone.
NX and Mario Kart 9 but that ain't gonna happen, Mario Party 11 if they get rid of the car.
Microsoft releasing all their big games on PC would be nice too.
If I go full unrealistic my dream e3 would be Nintendo going third party for home consoles so I don't have to buy bad hardware to play their phenomenal games, crash team racing hd remake with online multiplayer, 4 player splitscreen and later additional tracks as dlc. Animal Crossing on my phone that is just the same as the handheld series but continually updated with better online features.