I think it's even more focused than just EMD only....I think it's gone specifically "2nd Gen EMD" and with low range dynamics.
Based on the last couple seasons I could see 1751 and the Budd car hit the trail to make way for another former Mec GP38. 573 would stay on the roster, but only as a last resort back up...or just for fun on specials.
And even though they seem to prefer 2nd gen EMD, I would say if the 470 club acquired an ALCo or GE they would happily run it for specials as they do with the F7s and freight cars.
There was a private charter this past weekend, for the family of the late Rudy Hood. They boarded Millie with the 4266 and 4268 on each end, for a ride to and from Crawford's(?). On the return trip they met the regular scheduled Mountaineer at Sawyers River and the Valley train in Bartlett.