Why would they make a new Team Fortress when Team Fortress 2 is going so strong with user made maps, weapons, items, economy, and big updates?
Why would they make a new Portal when Portal 2 is also go so strong with the user submitted chambers?
There isn't much hope for a new Left 4 Dead because Louis, Francis and Zoey are living on an island far from the zombified society, and if they wanted to continue with Coach, Ellis, Nick and Rochelle, they can easily make it DLC, i don't think the possibilities of new survivors is very likely, especially any time soon
They ARE working on the next Half Life, you just gotta stop being a pessimist and be patient, would you want a Half Life that's rushed, broken, possibly unfinished?
And it's not like Valve HASN'T used the number 3, they've used it quite a few times, for example, the level 3 buildings in Team Fortress 2 and the third volume of the Portal 2 soundtrack
The next Half Life may not live up to it's hype, but you know what? I say that's the community's fault, they're probably expecting some super, hyper-realistic, amazing, computer-exploding graphics with amazing gameplay and a story that really drags you into it as if you were really there
But in reality, it's just another Half Life game, you go around, beating things to death with a crowbar and using all these different guns and vehicles to complete objectives
I'd like to know, how much of a difference are guys expecting? Of course it'll be a new story, some new characters and enemies, maybe some new weapons and vehicles, it sounds nice and all, but nothing really out of the ordinary