Without trying to sound to obscure and dodgy - some of all that, but none of it exactly. Techno-western with a great opportunity for scratch building is the best I can describe it.
Well, there was enough interest in Pinnacle's
Deadlands for it to flourish for a while, and Reaper is even now making new minis for it under the
Savage Worlds brand.
But it's hard to judge these things. On the record of
Gothic Horror: The Vampire Wars and
Rippers, I wouldn't have expected West Wind's
Empire of the Dead to take off as well as it has. At least as much depends on the actual product, and on the luck of timing, as on the genre.