Blizzard Entertainment today offered an up-close look at Westmarch's design and implementation on the official Diablo III blog, showing off concept maps, points of interest, and some of the city's real-life location inspirations. Westmarch pulls elements from "the fog-laden cobblestone streets of London in the 1800s" and features tightly packed buildings, winding alleyways, and grisly visual cues as to the city's failed attempts at mounting a defense.
The Survivor's Enclave is the one bright spot in this dismal world, a place where Westmarch's few living inhabitants can find rest and safety from the evils of the outside world.
Reaper of Souls is due in 2014, or as Blizzard likes to call it, SoonTM.
Diablo III - Westmarch