Valve Software has revealed it's aiming for something pretty ambitious for the final chapter in the current Gordon Freeman storyline.
Its plan has emerged from a question put to Valve's David Speyrer on the absence of an Episode Three trailer at the end of Episode Two.
Explaining that one of the reasons for the lack of a trailer was to avoid diluting the ending of the second episode, Speyrer added that another reason "was to leave us open on Episode Three" in an interview on Rock, Paper, Shotgun.
"We're going to try and do something pretty ambitious for that project", he continued on Episode Three. "We don't want to over commit."
"If you look at the Episode Two trailer that we shipped with Episode One there's some pretty radical difference between what you see there and see in finished game.
"That's really an artefact of making a trailer for a product that's still in heavy production. You just don't know where you're going to end up."
[Source: Rock, Paper, Shotgun]