Actually Vivec is still very much a god... See my previous post. The rest lost their power though that is true. As to Dunmer evolution, yeah some are probably more imperial now then before, this was heavily suggested during the events of Oblivion. But I don't think the Oblivion and Argonian Invasions have helped more trust for the Empire in the Dunmer people...
Lore forum. You can read more about at the Imperial Library and stuff, I'd recommend starting there. But a small warning it gets incredibly complicated and really fast and there isn't really an easy way to explain it. Anyway Vivec isn't dead.
I agree about the Dunmer trust issues they have been very distrustful of the other races.
I would like to see them after the fall of their great houses and how they have adapted since the Red Year the Argonian attacks and so on.
I have a Dunmer who was born during the time of Morrowind in Vivec city and he still has a firm grasp on ancient Dunmer traditions and customs, he also has an extreme hatred of Argonians since their attack of Morrowind so I understand that sentiment.
I go to the Imperial Library but I never thought to look up anything on Vivec I assumed he was dead and that's it. I have some interesting lore bits from the Library if your interested in checking it out.
The one thing about the thing who's name cannot be pronounced is an interesting tid bit of information.