Hotline Miami 2 - I absolutely love the first game, and this one looks great too. No-brainer. 
Diablo III: Ultimate Evil Edition - I want it, but largely depends on whether my friend gets it or not. 
The Witness - I've been intrigued by this game since it was first announced several years ago, and I'll most likely be getting it. 
Galak-Z - I think this game looks really cool, what with the whole "saturday morning anime" vibe they've got going, but the gameplay that I've seen hasn't really sold me. I think this is a game I'll have to play myself to judge.
Batman: Arkham Knight - I wasn't feeling Origins and skipped it so I wouldn't get burned out on the Arkham formula, and it worked, because I'm really excited for Arkham Knight. Definite purchase. 
Destiny - I have to be honest, I'm a little worried about Destiny. Bungie has been very cagey about it, and that doesn't really inspire confidence. Having said that, what they've shown looks great. 
Hyper Light Drifter - Not a whole lot to go on with this one, but I think it could be really incredible. Keeping on eye on it for sure. 
Wolfenstein: The New Order - I think this game looks super rad, and it would be a definite buy if it wasn't single-player only. I don't have a problem with single-player only games, but in an age where campaigns are routinely six hours, sometimes even less, I just don't want to get burned and buy some dinky six hour game for full price. 
Alien: Isolation - See Wolfenstein. 
Dragon Age: Inquisition - I think this game looks great and Bioware has certainly been saying all the right things when they talk about it, but after their lousy run over the past few years (especially Dragon Age II) it's going to take more than words to sell me on this one. Cautiously optimistic.  
Driveclub - I've really been itching for a great racing game recently, and I'm keeping a close eye on this and The Crew. 
The Crew - See Driveclub.
Rime - See Hyper Light Drifter. 
Lords of the Fallen - Action RPG taking inspiration from Souls? Could be great or it could be trash. I'm remaining optimistic though. 
Sniper Elite III - I loved the first Sniper Elite, skipped the second. The fact they're taking more of a sandbox approach with this has me very interested. 
The Evil Within - I'm really unsure about this one, but... it's Mikami and he's never steered me wrong before.