A new (to us) locomotive is en route to the Delmarva. Former DRRV GP10 #1823, former WW 732, is en route to Federalsburg for crew familiarization and inspection. It is unclear which line will be it's primary base. However, it should work Federalsburg to Seaford in the short term.
Here is a photo of the new to us GP-10. My photo, taken in Federalsburg with permission.