Stop making assumptions. You're basing your argument on a few clips from a trailer. None of us know ANYTHING about Dawnguard and it's associated lore or plot, so stop acting as if you do.
Yes let us completely disregard how logical the assumptions being made actually are because [censored] anyone who dares criticize Skyrim.
Listen, if you wanna be hopeful, by all means. But those of us assuming? We wanna deduce. We wanna deduce what could be based on what we've seen.
And what we've seen so far is an Elder Scrolls title that definitely doesn't seem afraid to sell out, followed by a DLC that copy-pastes a cliché unoriginal vampire concept directly from a recent semi-popular action movie, whereas the established vampire in lore, the Volkihar, are completely M.I.A. from Skyrim. Sure, they exist, but they act nothing like they do in the lore, but rather act exactly as the Cyrodiilic strain.
Why on earth would they completely ignore existing lore they've already created and then dedicate an entire DLC to a vampire strain that seems to match the cliché stereotype of vampires as known by most people? Because they're selling out and appealing to the common denominator; "the common denominator doesn't brush up on Volkihar, so let's just copy-paste an idea they're comfortable with." Because they're trying to use as much of the DICE gamejam stuff as possible and [censored] all balance and lore and stability issues those creations might make: it's cheaper to implement them since those have already been created, rather than to pay devs to design even more. And thus, one can expect that much of the DLC will share cliché aspects that will seem all too familiar.
By all means, if we turn out to be wrong when it's released, let us know, and by all means, you're free to be hopeful and stay positive about this upcoming DLC. But we also have a right to be pessimistic about it, to attempt to deduce characteristics of it, and I think there's more than enough reason to worry at this point.
Just because you don't see it in game doesn't mean it doesn't exist. It just means it wasn't important enough for the developers to implement given the time constraints.
Good thing Bethesda's got their preferences straight too, huh? I for one would've been ticked as hell if we actually got Volkihar and werebears and everything else synonomous with Skyrim lore instead of these incredibly awesome kill cams they gave us!
(i would have said you were right and it is really just the game mechanics limiting our ability as volkihar, untill i started to notice a few volkihar every now and then
There's no game mechanic limitation. Spriggans spawn directly from trees; from thin air. They could use the exact same mechanic to make Volkihar spawn from frozen lakes and the tundra ice in the northeast.