Interesting news. I wonder if the expansion will emphasize explaining the story better. I really loved playing through HL2, and though I always knew what I was supposed to do, I often felt like I didn't know what was really going on (like when the walls were being closed in on the city -- which I didn't realize until reading reviews later). I can't decide if that was intentional -- a kind of "you've just woken up from a 15 year sleep" realism, or if it was a result of cutting parts out to make release dates, or if they just decided the the HL2 story wasn't going to jive with the HL1 story, and players wouldn't really care. Maybe the expansion will make things clearer.