I doubt BNSF will be getting SD70M-2s anytime soon. Almost all the EMDs that BNSF has bought new have been AC engines (SD70MACs and SD70ACes). The only DC traction engines BNSF ever bought were the SD75Ms and SD75Is that were delivered not too long after the merger. Ever since the only DC traction engines BNSF has bought have been GEs.
I also doubt that BNSF will ever order any DC EMD's... We had a lot of problems with SD75M's and SD60M's... They just weren't good for the hill (Cajon Pass) which is why you hardly ever see them on the Transcon.