If Dovetail ever made a backdated Peninsula Corridor route, I would love to see some Espee Trainmasters, aka the Fairbanks Morse H-24-66, especially since they sounded much different compared to the typical EMD 567 and 645 engine sounds that most people are used to.
How about Pennsylvania Railroad GP7 Horseshoe curve with the F7 getting a Reskin from CSX Clinchfield to PRR Brown Paint. DTG made Horseshoe curve during the Pennsylvania Railroad years time to bring it into train simulator world 2
After Horseshoe Curve is released, I'd like to see the old Baldwin Centipede and Sharknose, including the DR6 and Broadway Limited cars.
Ditto on the SP FM Trainmasters; I really like FMs, and I'd like to see the SP Black Widow version. A PRR version of Horseshoe Curve could also include a PRR Trainmaster, as well as the Sharknoses and/or Centipedes. Another classic diesel I would like to see is the UP E9s for the upcoming Sherman Hill route. The locos have been rebuilt, but they are still, externally at least (except for the ditch lights), classic EMD E-Units. Also, SP Black Widow F-Units and/or GP7/9 torpedoes, and SD7/9s would be awesome on a backdated Peninsula Corridor.