I think it's extremely unusual for Ubisoft to not have announced something that supposedly comes out in 8 days.
I agree that it's unusual to have not announced the DLC yet, but the date of 2/28 feels right to me. The next week, 3/6, is the same week that The Da Vinci Disappearance came out last year, but it's also the same day that Mass Effect 3 comes out. I think it would be a mistake to release DLC on the same day as Mass Effect 3, where it might not get as much attention. So they may want to release on 2/28 to get in ahead of Mass Effect and keep it from being too long since Revelations' release.
If there really is a video starting to leak, I would guess it will be officially released today or tomorrow. The trailer leaks usually only start when Ubisoft has sent out the trailers to the media but but an embargo date and time on them. Someone always puts the stuff up early. Last year Ubisoft also did a press event for The Da Vinci Disappearance so the media could play it and write articles about it. Hopefully that will happen this year too.
You've got to wonder about anyone who pre-orders DLC, as if it's in short supply or something.
Ha. I also wonder why I would buy DLC from GameStop instead of just hitting "OK" a couple of times straight from my console. Maybe it's for people who only have or want to pay in cash instead of a credit card? Even then, I still don't get it. Wouldn't those people be used to buying points cards with cash already?
why should i gave a link? the FRONT page of you tube not so dificult not? i could see it 5 min ago now its gone. did realy nobody seen it? maybe because of the region i live i get other things on the front page