Speaking with Videogamer.com, Gabe Newell confirmed that a demo for Left 4 Dead will be coming in the future.
So we have a confirmation that the game is at least going to receive a demo. We just don't know the when or the actual content contained within.
Let's all remain optimistic and hope that it's a surprise demo release coming next week and contains all portions of one scenario! We can dare to dream.
We will be releasing demos for both the Xbox and for the PC. I don't know what the date is for release on that, though. I think it's going to contain the first part of one of the campaigns. I think it'll probably be Hospital but I'm not sure. That's a decision that Doug Lombardi is making.
So we have a confirmation that the game is at least going to receive a demo. We just don't know the when or the actual content contained within.
Let's all remain optimistic and hope that it's a surprise demo release coming next week and contains all portions of one scenario! We can dare to dream.