Handily I've lost the link now, but the UK Metro site stated that, although they weren't allowed to give an exact date, they could say that the embargo definitely ends before launch day. They also mentioned it being a sign of confidence at Sega, so I'd imagine they were hinting at a few days in advance at least. (This was in response to a question about the embargo at their Mailbag)
Best bit is at around just before 7 minutes in where the alien sees him hiding under a table and kills him. That's the first confirmation I've seen that you're still vulnerable when hiding, which is good news.