Toei has announced the 5500 series for the Asakusa Line.
The exterior design 'tells you it is fast' and has a livery using colours inspired by Kabuki theatre. The interior 'evokes the image of traditional Japanese washi paper' and features patterns of the Edo Kiriko glass craft.
The train features a wheelchair space, larger open spaces around the doors and more hand handles. Seats will also be wider than those of the current trains.
The maximum speed of the Toei 5500 series is 120 km/h, opposed to the 110 km/h of the current 5300 series rolling stock from 1991. The first new unit will be delivered in Spring 2018, after 7 other units will be delivered in the same year. The other units replacing the remaining 5300 series will be delivered subsequently, to make it in time for the Tokyo 2020 Olympics.
Source: https://trafficnews.jp/post/61002/