I'd love to see it happen; it should have happened in the base game, even if the Volkihar clan was unplayable.
It's not like they couldn't have gotten around the player being a monstrous vampire, either. I remember mods for Morrowind that allowed you to hide your vampirism by wearing a full helmet, casting illusion magic, etc.
It really does just feel like an opportunity lost. :/
The thing I simply don't get is, as I said....all the resources were there! It wasn't like they even had to go out of their way to do extra work to implement the Volkihar; no they would've been using existing resources. They could be assed to make spriggans walk out of trees, but they couldn't be assed to make Volkihar walk out of the tundra ice and rise from all the frozen lakes in the northeast? (which conveniently is supposed to be their territory, according to the lore)
I just don't get why they feel the need to create this new ability for Spriggans instead of working on existing abilities for Volkihar, and then even so, they don't go back and copy-paste the resources to produce the Volkihar.
Making it so the character can be "invincible" when walking on frozen lakes is doable too. You just need to categorize the frozen lakes as a special surface that, when stood on, allows the player to use an ability that basically simply makes his character invisible/invulnerable (similar to the mist form bat thing they implemented, ffs...) and travel much faster.
They simply don't care enough to implement it, which seems odd because it's THEIR lore...
Are you serious they should have made a game about vampires and then make them unplayable? Thank god they are not listening to these ideas. If we are attacked at every stage "lore wise" then we could never do a quest or anything else but the dlc. No one but you and a handful of other people would enjoy that. Its like you want them to go bankrupt with ideas like this.
Ever heard of Morrowind?
The issue isn't being-attacked-on-sight, it's that there's also no vampire-exclusive content in Skyrim. In that way, a mod maker would have to make tons of quests to make being a vampire appetizing, so it's not as simple as simply implementing their spawns and their abilities.
But for the devs this wouldn't be such a huge feat. I mean Morrowind did it...