I suggest a class 57 for WCML. Since we already have the class 47 it could use that as a base. It would give an opportunity to do drag moves of class 390's.
Bumping this up. It would be very doable for GWE (with remaster out) and pretty easy to "do" design-wise because the basic assets and licenses are in game already. It's the body of the 47 with an American EMD 645 engine which most of the US locos already use. The body/track sounds would be the same as the 47 and the engine would sound like an SD-40 basically. The only "new" bits to add would be any cab details such as modern signaling, safety systems, etc. I think it's very achievable with little work and would sell. Given that it'd take a LOT less work (the assets for it are already in the game) they could put it out for under $15, maybe bundle it with the remastered GWE for a promotion, and layer it on multiple routes (basically have it sub in for the Class 47 and Class 66 everywhere) If people don't want to use it because it's not the right livery then fine, but layering it all over to cover both 47 and 66s on MOST routes would be a HUGE selling point for me as a casual. Definitely worth a $10-15 buy for me, and with very little new design work to get it to market, low investment and low cost= big sales so lots of profit. Heck, even a relatively small third party could run with the idea since it doesn't involve much new design, you don't have to create a route or timetables. A group like Athena could even do it as a project (nice rework of the 47 cab on their release) And the biggest complaint about the 47 there was that it's "not modernized"... which wouldn't be the issue here since the Class 57 would be up to 2000s safety standards from their rebuilds.
