2H UH is not dead, that is if you have faith in Kahorie's simulator, which I do. The somewhat sad part is that you have to use Obliterate as your main attack instead of Scourge Strike. Anyways, the numbers I got on the sim:
I tried to move points between Morbidity, Necrosis, BCB, and Desolation in as many ways as I could think of, and this proved to be the best. However, moving 2 points from Desolation and maxing Necrosis was only a 9 DPS loss which, in the end, might be the way to go since it works better for dynamic encounters as opposed to static Patchwerk types, of which there are few these days. The only thing I didn't check was Outbreak due to lack of time. I'll do that later, but I doubt it will change anything.
The tests were 250 hours on the simulator at 200ms latency using 2H StatSet2. Sigil of Awareness and Sigil of the Vengeful Heart were both used, and Vengeful Heart won out every time. I think the interplay with UB and DC is what puts it above Awareness for the Sigil of choice. Priority is Blood Plague>Frost Fever>Obliterate>Blood Strike>Death Coil.
edit - For reference, I also simmed 51-0-20 and it checked in at 6544, pretty much exactly the same as the traditional Scourge Strike UH builds.