Revival is a relative term -- OT is still pretty obscure, but there does seem to be an increase in interest. Bluegrass still dominates in Washington (DC, that is), but there is lots of OT along the Virginia/N. Carolina border and when I was traveling down there last spring the younger musicians had a repertoire of fiddle tunes that was almost entirely different from what I'd learned in the 60s and 70s in New York.

Appalachian State University in Boone NC, when their football team isn't busy embarrassing Michigan, has a strong academic program in Appalachian Studies, including OT and Bluegrass music. I asked them if their students ever do double majors in music and in the academic stuff and they emphatically said no: the students virtually all arrive with music skills already established.