I'm going to expand on an idea from a reply I made to a previous post. Since JR are unlikely to provide licencing for their trains, JNR content may be possible due to it being a Nationalised Network, thus it should fall under the same circumstances as British Railways. As the trains running in the Tokyo area were largely the same across most routes, although there were large varieties being used on each line. I would like to propose 6 different time frames for this route, and I shall elaborate more on the potential features and rolling stock options based on the time frame people would like to see. 1961-1962: No Shinkansen Lines, Last years before Meguro Signal Field was removed. 72 and 101 Series trains operating on the Yamanote Line. 1965-1968: Tokaido Shinkansen Only. Green 103 Series introduced, but 101 Series still carrying Canary Yellow livery. 72 Series still around, but possibly not on the Yamanote line itself. 1972-1978: Tohoku Shinkansen under construction. Colour of trains unified. Changes of department meant differences in operations to earlier routes. Yamanote line trains unified as green 103 Series trains. Yellow 101 Series trains are transferred to the Chuo-Sobu line to replace the 72 Series. Changes are made to the track layout between Tokyo and Kinshicho. 1979-1981: As above, but prototype 201 Series trains are introduced to the Chuo (Rapid) services. 1983-1984: ATC Introduced, Tohoku Shinkansen still under construction. 103 Series replaced with mass production 201 Series on Chuo (Rapid) line. 1985-1987: Tohoku Shinkansen opened from Ueno, 205 Series introduced on Yamanote Line, which operates alongside the older 103 Series. 101 Series trains no longer operate on the Chuo (Rapid) line, but still operate along side the 103 Series on the Chuo-Sobu route. Any route set after 1964 should feature a 0 Series Shinkansen (not drivable), and at least 1 type of train running on the Tokaido and Tohoku main lines (possibly drivable) to flesh out the route. As such, I shall include any info on these once I have some feedback. While I would like to do this as a poll, I'm not being given the option right now, so just write a comment below. Also, as polls would include a yes/no option, please say if think this route would be good or bad addition to TS2021, and why you think it is good or bad. If I can, I'll add one retroactively. If you've got this far, thank you for reading this.