This is an update on February 6th.
Marubeni Corp. and Kansai Electric Power submitted their final EIA document to the Akita prefectural governor and the city mayors (in Akita-city and Katagani-city) on February 5th. That document is summary of document they submitted to the Minister of METI on December 21, 2018.
The document can be seen at local governmental office and/or following website. (All EIA document is written in Japanese.)
http://www.kanso.co.jp/environment/assessment/akitakou/hyoukasho.html