There is no anticipated effect on the Western version of the game; we have reached out to PWE for comment on confirmation, however, and will update when we have it.
In the west, the free-to-play Neverwinter has seemingly enjoyed a popular run on PC and console, claiming 12 million registered players across all platforms as of last autumn. Its Cloaked Ascendancy expansion is due out later this month.
Source: MMO Culture
Update: PWE’s western division confirmed to Massively OP that the western version of the game will not be affected by the Chinese sunset.