I saw a recent interview with Mike Mason where he mentioned it as coming soon.Chaosium will, presumably, some day, publish the three-volume old west CoC series I wrote/compiled for them awhile back, a sourcebook and two adventure collections. Sourcebook and series title was still Down Darker Trails, last I knew. As for when? Quien sabe?
I have no hard numbers or anything, but I have a sneaking suspicion that it may be approximately as "healthy" as the Western genre in RPGs itself. Supernatural elements seem to be a pretty safe and popular standby that you can throw in pretty much anywhere you like (as long as you don't make it too blatant a bait and switch, in which case players may get annoyed at that more than at the supernatural itself), but interest in playing specifically somewhere resembling the "Old West", that's got to be somewhat less common.I don't have anything to offer (unless you count an ultralight I developed about a year ago that received limited playtesting) but I am curious: how healthy is this genre?