Its going to be the Volikiar fighting vampire hunters called the Dawnguard. The Volikiar will probably want to block out the sun so that they can rule Tamriel. Thus Dawnguard.
It'll probably take place within the relm of Nirn too, it'd make sense.
We don't know if they are the Volkihar. But who knows? I know Dawnguard is a faction who fights against the vampires. But my question was the new realm we visit.
iv been to a page on the UESP that talked about the "Soul Carin," (i have not heard of it in game though) it is supposedly a place that is a realm of the dead and is ruled by the "perfect masters," maybe we get to give it a visit? sounds dark enough for a vampire DLC imo
Maybe. I looked it up on the Imperial library a few hours ago, and it matches many concepts of vampirism,
If vampires do go to Coldhabour when they die, I doubt it's nice for them. It probably involves eternal domination, torture and [censored].
It is different from the Hunting Grounds. And you are right. A developmet mentioned
anyone who goes into Molag Bal's realm, willing or unwilling, will be put into charnel houses.