Honestly having watched that interview he did with the 3 devs the main takeaway for me was that the only reason they opted to make a Half-Life game was because
1: None of their other IPs would work
2: They'd already been using the Half-Life assets as placeholders because it's Source
3: They couldn't be fucked to come up with a new VR exclusive IP
I dare say it will be a great VR experience and I'm looking forward to it in that regard but at the same time, finish what you started Gabe.