I wonder if there's going to be some sixth house stuff in the game. At 1:00 we see a creepy floating, vaguely humanoid tentacle monster that kinda reminds me of the Ascended sleepers from Morrowind. Not quite as fat, though. Right after that there's a glimpse of some creepy, deformed zombie types, which made me think about corprus.
yeah thats what everyones speculating. BUT in morrowind you cure corprus. Well not necessarily cure it, but you make it so there is no more 'new' corprus. That being said, it is possible for corprus beasts to have lived for the last 200+ years, as corprus does make you live forever. But i cant really see how any corprus beasts made it to solthsiem from vvardenfell.
I mean corprus was restricted to vvardenfell, thats why they had the quarantine and you couldnt leave the island back to the mainland, because they were keeping corpus off the mainland.
And you think in the last 200 years there would have been crusaders of a sort (most likely house Redoran or house Indoril or the temple) that would be hunting down and killing any remaining corprus beasts.
But who knows, there is still a possibility that the Nervarine has been spreading corprus in the last 200 years (as s/he does still have the disease, s/he just doesnt get the negative effects from it, which im not sure if that includes the contagious part of the disease)