On my Amazon wish list (doesn't mean I'll get them all, waiting for reviews, user comments, deals...):

AC Unity
Alien Isolation
Diablo III
Far Cry 4
GTA V
Middle Earth: Shadow of Mordor
Sleeping Dogs
The Evil Within
Tropico 5

Plus every PS+ game.

Far cry4
GTA V
Lego Batman 3

100%:
- Call of Duty: Advanced Warfare
- Hotline Miami 2: Wrong Number
Possibly:
- Driveclub (If I really like the PS+ edition)
- Minecraft PS4 Edition (I'll consider it if Microsoft says they'll continue to update it, which I doubt)
- Grand Theft Auto V (Waiting on more info on what's new and improved, what we know isn't enough for me. Or a good deal)
- Assassin's Creed: Unity (If I need something to play, but AC4 disappointed me)
- Far Cry 4 (If I need something to play)
- FIFA 15 (If I see a good deal)

It depends on taste more than anything else. I just want two games coming out in the rest of 2014 on Wii U (one of them is a game I already have on PS4), while I would be buying 6 games on PS4.

LBP3 for sure! Aaaaaaaand that's pretty much it :/ Although i'm thinking about getting Diablo 3, Destiny really made me curious about Diablo 3 on PS4 somehow xD

Wow, I would have got most of those too if I had enough time and money. But I'm also getting an XB1 ($667 in India) with 3 games (each costs $70) on top of the 6 PS4 games I listed (again costs $70 each) and AC: Rogue on PS3 so I can't have them all.

Games I Already Purchased for PS4 this year:
Destiny
Diablo III: Reaper of Souls
inFamous: Second Son
Trials Fusion
Watch Dogs

Games I am Purchasing later this year for PS4:
Grand Theft Auto V (Never played it on PS3, looks like an awesome game.)
Far Cry 4 (Beautiful Graphics, the characters seem original, open world.)
Call of Duty: Advanced Warfare (Promising new dev, could make COD good again.)
Assassin's Creed: Unity (Looks like fun, incredible graphics, gameplay.)

It might not be enough for you, but it certainly is a good deal. It has far more NPC and traffic density, much better graphics, more foliage, more wildlife, more weapons, much smoother framerate and you even get $500k in game for both GTA V and GTA: Online for upgrading. It even supports many more players online (30 on PS4) which is a great deal.

Took me an hour or so to get into Diablo 3, but once i did, it's awesome. :)

Nothing else I don't think.
Maybe LBP 3. Any Japanese game releasing this year?