I know there has been some talk about CN picking up a bunch of spare engines, some of which have been in service on the BNSF. After CN picked up all the C40-8s that were available I don't know what they are going to get, but there are over 40 engines in storage at Northtown Yard (NTW) right now, not counting BNSF 4663, the C44-9W wrecked in the Fridley derailment last year. I think most of the BNSF paint schemes can be found in the lineup.
The view under the St.Anthony bridge. These are the lines to the right of the TBOX car in the photo above. The snow is gone now, but I'm guessing the engines are still there. BNSF 8193 is a SD60M, the rest are SD75Ms.