I'm in Toledo at UT now, but grew up 20 minutes north of Greenville, close to Corman's other line in west-central Ohio, and yes, RJ Corman does operate the line south from Ansonia to Greenville on the Cincinnati Northern. How frequently, or what business is online, I'm not entirely sure. Where 127 goes over the ex-PRR, there's always a number of covered hoppers sitting around on both sides of the overpass. The times I've seen this train, it's been mostly covered hoppers with maybe a tank car too. Sometimes, there will be a cut of hoppers sitting to the south of Ansonia on the CN too.
Not sure when the B&O was torn up. The crossing of those tracks on 127 is still very visible as well. Taking a guess, I'd say early 1980's. I was just a baby then...