Class 185s were built between 2005 and 2006, NTP is set in 1983. They would have to be put on a different route.
I hope Diesel legends was just a one-off, a 185 wouldn't fit on NTP at all, not to mention the fact that some stations on the line don't even exist anymore
Most of the stations now still exist mainly Manchester Victoria Marsden Slaithwaite Huddersfield Deighton Dewsbury Leeds
Too modern for the route and you need to know there's a 1988 built Cottingley Station between Leeds City and Morley. Soon to be replaced by White Rose station in 2022 which is going to be between Leeds City and Morley. NTP also gets a Class 802 TPE train if a Modern NTP was to be made.