Wow, no mention of Source2?
A huge part of the delay has been that every Valve game out now uses their Source game engine, which is now more than ten years old. They have been gradually implementing a new game engine, but these sorts of things are a moving target. There is not much reason to develop new games for the ancient engine.
So far, they have done some work at least on L4D3 and HL3 ideas, but this has been testing game bits along with the new engine.
But, my cursory search now indicates that DOTA2 has been ported to Source2 and released this past fall, so there is some traction.
I don’t know if it matters how many people read it, it doesn’t make the content any more substantial.
