Games already launched that you want to buy someday.

Starcraft 2. I was waiting for all three main parts to be released. They are all out and I can even get it for a discounted price, but I haven't bought it yet. I have a laptop that can run it, but I might wait until I have a dedicated gaming PC again.
 
Persona 5
Nier Automata
Mass Effect Andromeda
Resident Evil 7
Nioh

For the first two I want to wait until I have an appropriate open time window to play them in; with the latter three I wait until they hit a price point that's acceptable to me.
 
Odin Sphere Leifthrasir (Vita)
Gravity Rush 2 (PS4)
Stardew Valley (PS4)
Little Nightmares (XBX)
Candle Man (XBX)
Dead Space 2 & 3 (XBX BC)
Tekken 7 (XBX)
Injustice 2 (XBX)
Dead Rising 4 (XBX)
Snake Pass (Not Sure)
Just Cause 4 (waiting on the XBX for performance improvements then ill buy)
 
PS4

Horizon Zero Dawn
Rocket League
Final Fantasy Type-0 HD
Persona 5

also does the DLC count ?, someday i'll buy Bloodborne : The Old Hunters

3DS

Bravely Default
Fire Emblem Echoes: Shadows of Valentia
 
Ori and the Blind Forest (and its sequel) because it's the only XB1 console exclusive I'm desperate to play. It's just not enough to get me to buy the console.
 
Currently waiting on:
Horizons Zero Dawn
RE7
Kingdom Hearts 2.8
Digimon World Next Order
Crash Nsanity trilogy

There's probably more, but these are the ones in waiting to be really cheap. I also have a curiosity about Mighty Number 9 that I'll indulge on when it's like 5 dollars ( which it almost is)
 
SO MANY

I've been so behind.

It's been a while since I've bought anything really but I just purchased Horizon Zero Dawn and Uncharted 4 today. So I'm getting somewhere.
 
Injustice 2 and tekken 7. Absolutely love fighting games but I suck so terribly at them that online is pointless for me. Always hard to justify paying full price here in Australia.
 
Gravity Rush 2
Kingdom Hearts HD I.5 + II.5 ReMIX
Kingdom Hearts HD II.8: Final Chapter Prologue
Persona 5

Waiting on a sale to get these for $30 or less. I'm in no rush.
 
Nier Automata. Can't wait to get my hands on it but I just got gifted Persona 5 and I haven't even finished Dark Souls III. By the time I get to it it will have been on sale for sure.

Also Crosscode, Owlboy and Ori, all for similar reasons.
 
Put games that you will really try to buy someday. Not games you have interest but, deep inside, you know that will never move a finger to try to buy it.
???

Okay, I assume you mean the opposite, but in that case:

NES
The Legend of Zelda
Mega Man 2
Metroid
Dragon Quest
Final Fantasy

SNES
Super Mario Kart (Had this as a child, but lost it)
Super Mario RPG (Had this, but my brother lost it)
Star Fox
Donkey Kong Country 2

Genesis
Sonic the Hedgehog
Sonic 2
Vectorman
Earthworm Jim

GameBoy
Link's Awakening
Oracle of Seasons (Had this, but sold it)

N64
Conker's Bad Fur Day
Banjo-Tooie
Paper Mario
Super Smash Bros. (Lost this game)

PS1
Legend of Dragoon
Crash
Crash 2
Tomb Raider
Tomb Raider II
Valkyrie Profile

PS2
Black
Rogue Galaxy
Dark Cloud
Dark Cloud 2
Valkyrie Profile 2
Shadow Hearts
Shadow Hearts Covenant
Shadow Hearts the New World
Legaia 2: Duel Saga
State of Emergency
Persona 4

DS
The World Ends with You
Mario & Luigi games

PSP
Jeanne D'Arc

Xbox
Halo
Halo 2
Street Hoops

PS3
inFamous 2
LittleBigPlanet 2
Bloody Roar II
Final Fantasy Crystal Bearers
Red Dead Redemption
Tekken Tag 2
Spyro 2
Pac-Man Championship Edition
Bioshock Infinite
Persona 4 Arena Ultimax
3D Dot Game Heroes
Dragon Age Origins
God of War III
Final Fantasy XIII
Kingdom Hearts II.5

Wii
Mad World
Super Mario Galaxy (Brother had this, but dropped and broke the Wii after i just unlocked Luigi)
Super Mario Galaxy 2
No More Heroes
No More Heroes 2
Twilight Princess
Skyward Sword
Punch-Out
The Last Story
Xenoblade Chronicles

360
Lost Odyssey
Blue Dragon
Eternal Sonata

Wii U
Hyrule Warriors
Pikmin 3
Super Mario Maker
Kirby and the Rainbow Curse
Yoshi's Woolly World
Bayonetta
Shantae 1/2 Genie Hero
Donkey Kong Country Tropical Freeze
Captain Toad Treasure Tracker
Xenoblade Chronicles X

3DS
Bravely Default
Bravely Second
Pokemon Moon
Kirby Planet Robobot

PC
Overwatch

PS4
The Evil Within
Mafia III
Watch Dogs 2
Metal Gear Solid V
Horizon Zero Dawn
Mortal Kombat XL
Persona 5
Nier: Automata
Gravity Rush 2
Tekken 7
Street Fighter V
Probably something else I'm forgetting. I don't have a PS4 so a lot.

Xbox One
Killer Instinct

Switch
The Legend of Zelda: Breath of the Wild
Bomberman
Snipperclips
Mario Kart 8 Deluxe
ARMS
 
Titanfall 2 (PC) hearing only good things about the campaign.

Mass Effect Andromeda (PC) played all other Mass Effect so I can't skip this one. Waiting for a good sale.

Nier: Automata (PC) not my genre but want to see what all the hype is about. Waiting for sale
 
About 200 games on my list that qualify. It makes me sad that most people see games as disposable/no longer valuable after their one year launch window. The reason I haven't bought them is because I only have so much bandwidth for games at a time.
 
Doom
Wolfenstein
Metro
TLOU
Uncharted 3 and 4
Until Dawn
RE7
MGS5
TLG
KH 1.5+2.5+2.8
Horizon
Infamous
TEW
Alien Isolation
Bloodborne
Forza Horizon 3
Ratcher and Clank
Ori
Yakuza 0
Tales of Berseria
MGR:R
SRW V
Tekken 7
Diablo 3
Farcry 4/Primal
Persona Q
W101

Off the top of my head. I would have already bought a lot of these had I not spent my money on GAAS like league, and overwatch.
This is by far the most terrifying post in this thread lol. GAAS both works and eats into the sales of other games.

To answer the question, for this year alone just Yakuza 0 I guess. I also want Divinity: Original Sin for PS4. I'm waiting for both to hit that $20 price point but looking at both I have this feeling they'll stay at $40 and $30 forever.
 
BotW. This and The Last Guardian both had me really interested for a long time, and then I just never got them—I just liked them for the hype, I suppose. Only played TLG because someone got it for my birthday.
 
Night in the Woods is the main one (I'm holding out for a physical release), but Horizon and Nier are on my radar. I'll probably grab Project Diva: Future Tone someday, too; I love me a good rhythm game.
 
Horizon: Zero Dawn: Game looks fun, plus has robo dinos. Been to busy with other games that haven't gotten to it yet

Also Yakuza Zero: impressions I've seen from others really make me wanna give this series a go someday

Ohh and Nier Automata as well, heard the story is great
 
Just keeping to recent games otherwise this list will be too long.

PS4
Horizon: Zero Dawn
Prey
Hitman
Final Fantasy XV

PC
Night in the Woods
Princess Maker Refine
Princess Maker 2 Refine
When Our Journey Ends
Herald: An Interactive Period Drama

Reason: I have too many games as it is and don't need to add to my gigantic backlog. I will likely pull the trigger on the PS4 games if they hit $20.
 
Too many to list. Most of the games I'm excited to eventually play are ones already released, ranging from recent releases to stuff that is 25 years old.

There's plenty from the first half of 2017 alone though:

Resident Evil 7: Biohazard
Tales of Berseria
Yakuza 0
Nioh
Horizon: Zero Dawn
Torment: Tides of Numenara
The Legend of Zelda: Breath of the Wild
Nier: Automata
Mass Effect: Andromeda
Persona 5
Prey
 
There are 70 games on my Steam wishlist, and except maybe for 2 or 3 games all of them were released already.

But the ones I want the most are:

- Wolfenstein
- Prey
- Rise of the Tomb Raider
- Dark Souls 3
- Shadow of Mordor
- Nier Automata

For PS4: Horizon Zero Dawn and Uncharted 4.