Yup, making anew with a new interview, with Eric Johnson of VALVe Software... a select excerpt:

GS: What can you tell us of the major characters, such as Alyx, Dog, and the G-Man? What are they up to? And will we meet any major new characters in Episode Two?

EJ: Most of the characters will be back in Episode Two, including the G-Man. Since the Vortigaunts stepped in at the start of Episode One and pulled you out of the G-Man's control, he'll be coming back to enlighten Gordon on a number of events and give you some insight into his line of thinking. There will be some new additions to the cast in Episode Two, as well.