Microsoft 

Halo 6 teaser at E3 but won't release in 2018.

Sea Of Thieves will do well enough critically and commercially to launch a new franchise.

We will see a noticeable increase in Japanese games they get.  But they still don't sell at well.

E3 will just be showing multiplats mostly.

By the end of the year it will have come in third place in terms of sales.

Crackdown 3 will get mix reviews and at best under perform.  

Sony

Death Stranding, Ghost of Tusushima, and Last Of Us Part 2 won't release this year but all three will have big showing at E3 with gameplay debuts. 

Spider-Man comes out in the latter half of the year and become the best selling PS4 exclusive of all time.

God Of War will release in May and become the best selling game in the series but the gameplay changes will divided the fanbase.

Dreams will bomb.

Detroit will be Quanitc Dreams best review and selling game and Quantic Dream will be bought out by Sony

Days Gone will sale well but get mixed reviews for being a generic open world zombie game.

Nintendo

Switch momentum will continue into 2018 with starting off with a January direct that shows most of their line up for the year including Animal Crossing and Smash and the first footage of Prime 4 gameplay.

Prime 4 and Bayonetta 3 are either late 2018 or early 2019

Pokemon will be properly revealed right before E3 and be the key cause of the Switch willing holiday 2018.

GTAV will be released for the system before the year is over.

Retro studios game is a new IP that is an western RPG set for a 2019 release and be revealed at E3.

We will see a huge increase in third party support especially from Japanese publishers 

Third Parties

Red Dead Redemption 2 will be delayed again to late summer but will release during that period but there will be big backlash towards whatever micro-transaction system they are planning.

Anthem is gonna be a total shit-show.

Rocksteady's new game is another DC character and will be revealed in the first half of the year and released in the second half.

Persona 5 is gonna get ported to the Switch, Xbox One, and PC.

Due to the recent backlash of Destiny 2 the first expansion for the game will start to be the decline for the franchise.

Bethesda won't have an E3 conference this year but Square Enix will.

Kingdom Hearts 3 will release in late 2018

Monster Hunter World Ultimate will be reveal at TGS and will come to the Switch.

There will be full on government regulation towards loot boxes by the end of the year which result in most if not all publishers abandoning them.

Watch Dogs 3 will release in Assassin's Creed place this year and officially begin a rotation between them.

Here's last years thread on predictions for those interested.

 http://gamrconnect.vgchartz.com/thread.php?id=224053&page=1

Nintendo

Smash 4 port in spring
Fire Emblem in summer
Yoshi in Atumn
Pokémon and Retro's new ip in Q4
A bunch of ports of popular 3rd party games (GTA 5, Dark Souls...)
No real virtual console. Nintendo will be doomed again.

Sony

Spider Man and God of War will do well
The Last of Us 2 will be 2019
Some more vague trailers for games that won't be releasing anytime soon

Microsoft

Sea of Thieves will be just average, both in quality and sales
Halo 6 in 2019
Sales will be roughly the same as this year. Not horrible, but not good either.

Atari

Ataribox will release in June
Despite stock issues, it will be the best selling console
Namco will release a new Pac-man. It will be a 3D horror game.
E.T. the Extra Terrestial 2 will be the big holiday title
Atari will buy EA, Ubisoft and Activistion. All their games will become Atari exclusives.
Asteroids 2 will be announced for 2019. It's an online space shooter.

I agree with most of this.  However, I see no evidence that there "will be a full on government regulation towards loot boxes".  I think the more likely scenario is that the industry pulls back from loot boxes just a bit for the next year or two, to avoid government involvement.  

I also don't see any reason to think that Anthem will be s shit-show, or that the 2018 Destiny expansion will start a decline for Destiny.  As for Destiny, it has either started that decline already, or it will be pick back up in a future expansion and get back on the course we all imagined a couple of years ago.