EA: Don't really care. Maybe show off some solid single player content for Star Wars Battlefront 2?
Microsoft: that all first party Xbox games will continue to be on PC so I don't have to buy a Scorpio
Bethesda: Hoping Fallout 4 VR is a free add on to the existing game and not something extra I have to buy. Seeing whatever Shinji Mikami's follow up to The Evil Within is would be rad.
Devolver: Show me Serious Sam 4
Ubisoft - Make Assassin's Creed Origins a good AC and not a bad AC. Also the Mario x Rabbids RPG will hopefully have actual work put into it and not just be a cash grab. Things that won't happen: WE'RE BRING BACK PRINCE OF PERSIA!
Sony - Give me release dates for all the games you announced over the past 2 years. We're also due for a new KH3 trailer since it skipped E3 last year. Also more reasons to justify owning a PS4 Pro.
Nintendo - The focus will be Super Mario Odyssey but as long as we get an announcement for Smash 4 Deluxe I'll be good. Maybe a surprise announcement on a series that hasn't seen a game in a while like Metroid or F-Zero. I doubt it would be at E3 but maybe also show what the Shin Megami Tensei game for Switch is or any Kirby 25th anniversary games tthey have planned.
SUPER SECRET HOPE THAT WON'T HAPPEN: Sony or Nintendo has a square-enix announcement of localizations of Dragon Quest X and Dragon Quest XI
