The Upcoming E10 Sinkansen announced by JR East. Hmm, based on the information provided (source), it has a tiling system installed, and some fancy seat. It was said that it would be operated at 2030.
Green car seat
Regular seat
TRAIN DESK.... named by JR East. I don't know what is it for
(can it really reduce sound?)
The Green car seat oddly look similar to those used by Cathay Pacific