JR East's short term plan in regards to infrastructure, one important bit is that they will build replacement Shinkansen E7 sets lost due to Typhoon #19 last year
https://www.jreast.co.jp/press/2020/20200916_ho02.pdf>>1547558The trainset in question was recently refurbished and remodelled, the original cars were built in 1980 and are 40 years old
>>1548120To be fair a lot of the older stuff are in the rural areas or non-major cities, the latter is kinda strange since Okayama is a big enough hub but it still has mostly JNR era trainsets
