Non c´est juste une fausse rumeur qui avait au départ été lancé sur le forum de HL2
http://www.hl2fallout.com/forums/
Mais, après une enquete approfondi, c´est un petit malin qui avait hacker le pass de Gabe Newell´s et avait fait une annonce que le jeu serait gold le 30 septembre, une vague est parti de la, beaucoup de sites ont ajustés les dates de sorties d´après cette fausse rumeur
´Half-Life 2 Fool´s Gold
MikeJ @ 10:20 pm pdt - half-life, hl2 & tf2 - important - 108 comments - hot topic
Update: Gabe´s password was " gaben", which the imposter guessed to login and make the Half-Life 2 " Going Gold" post. Also, Valve has posted a response on the Steam Forums. See below for more details.
HL2 Fallout´s Mr Bond has cleared up the mystery behind a recent post made by Gabe Newell´s forum account claiming that Half-Life 2 will be going gold Monday. Since HL2 Fallout is having server issues, we have mirrored the news post:
After a close scrutiny of Gabe Newell´s account history on the forums, we´ve come to the conclusion that the gold post is a fake. While we can´t be 100% certain at this stage, all indicators point towards someone hacking the forum account. That said, all Gabe´s previous posts on these forums are quite legitimate.
We apologize for the confusion and will be investigating further. Theoretically, an IPB forum account should be very difficult to hack. Well, that was the theory at least. We´ll keep you updated.´
http://www.csnation.net/
Finalement, c´est encore un épisode de la saga HL2, il se font encore hacker . . 
