I will be in Japan in 2020 and would like to travel on the newest, fastest trains in Green Car or Gran Class. Here are the routes:
6/30/2020 - Transfer from NRT to Shibuya
All over Tokyo by metro for 6 days
Round trip - Day trip Tokyo - Yokohama
One Way - Tokyo - Nagoya
One Way - Nagoya - Kyoto
One Way - Kyoto - Osaka
One Way - Osaka - Tokyo
All over Tokyo for 3 days by metro
7/18/2020 - Transfer from Shibuya to NRT
Again, newest, fastest trains in Green Car or Gran Class.