As the title suggests this video contains massive spoilers for those who have not played Lords of Shadow. You have been warned. If you haven't played the game, go try it. It's bloody amazing.
As we know, at the end of Lords of Shadow, it is revealed that Gabriel became Dracula, presumably from the power of the mask. It was set in the future (or, our current time) and showed Gabriel (Dracula) fighting with Zobek and being blasted out of his cathedral into the busy street. But this trailer seems to suggest that maybe Alucard is involved in the plot and that the game takes place after Gabriel's human life is over but much before the Dracula we are shown at the end of LoS. Hopefully Zobek is still involved as I found his character intriguing.
Also, I love how Gabriel (I guess I should start calling him Dracula) now looks much more in line like the Dracula we have come to know. He has the ravenous features and those eyebrows.
Alas... ready for some Alucard?!
EDIT: THAT MUSIC. I think this is some of the best trailer music I've ever heard!