There should be ZERO news on this. They should not say a thing. NOT a single thing! No articles, no news, no comments. Just let it all die. Then if they really are working on it and really do finish it, still say nothing. Except offer a link to download the demo without warning when it's finally finished. Actions speak louder than words.
Can you imagine the shock waves across the web? People would be SO shocked, they'd be like, "HEY, you won't believe this, but I downloaded duke nukem forever demo!", "Yeah sure", "no really! look!!!" THAT's how it should be done. If it were a real game that really existed and could be bought, along with downloadable demo, the word would spread so fast they would not even need to advertise it at this point. Even TV news would probably make a small mention of how the game is finally finished. Word would spread faster than a viral video because everyone knows DNF has been vaperware. But a real link would shock people.