With Valve planning to release their Steam Box this year, I imagine they will finally unveil HL3 along with it. It would be a MASSIVE launch title for the console, but I'm sure it won't be exclusive to the console. Maybe we can finally figure out what happens to Alyx and Gordon this year.
Leave hardcore gaming to the good games. HL2 was an utter disappointment. Games like CoD and Battlefield hold the stage. Not only do I anticipate HL3 being a failure, but I predict that the Steambox as a console will fail as well. Lets face it. Valve has been producing cheap "last for a week" games (the only exception being L4D2). The Steambox lacks a disc drive, but the hard drive is no bigger than the Xbox One's to compensate. It even looks like a VCR from the 60's. Leave FPS to the pros like CoD and BF.
And I feel like I'm the only one who's okay with it. Let's face the facts here, Half-Life 3 has been hyped up and anticipated and speculated on so much, it's essentially what Duke Nukem Forever was. Like DNF, we got a game that everyone was pumped for, but not only failed to live up to the hype, but was terrible as well. Half Life 3 has had the plot speculated on, fan fiction written about it. Hell, it's even had fake mini-series based around what it MIGHT be about. But if it does come out, no matter how good of a game it may be, it'll utterly disappoint and will never live up to the hype.