I was just browsing around on some sites and just stumbled upon this article that talks about gabe and Riccochet 2, possibly codename for half-life 3. heres an excerpt
"In terms of Ricochet 2, we always have this problem that when we talk about things too far in advance," Newell said. "We end up changing our minds as we're going through and developing stuff, so as we're thinking through the giant story arc which is Ricochet 2, you might get to a point where you're saying something is surprising us in a positive way and something is surprising us in a negative way, and, you know, we'd like to be super transparent about the future of Ricochet 2."
You can read the rest of the article here. http://www.gamespot.com/news/half-life-3-wait-explained-6372687?tag=Topslot;Today039sGamingNews;Halflife3WaitExplaine