Russian speak

[Shirai]

Look, it's clear you want it, but that doesn't make it happen.
SE is not some Indy developer from Kickstarter that sways with promise of a few extra bucks for implementing a specific feature in their game for you, SE is a multi-billion Yen multinational gaming company that aims to please their shareholders before their gamers.
What you want isn't some project where they put a few temps on, this requires the full time employment of several people having a native level in Japanese, English and Russian to both translate the existing content as well as guarantee continuity. A partial gig isn't going to happen, it's the full game or nothing.
Also unlike you, many people are not that keen on paying a few bucks extra to be able to play in their native language.

What you need to convince SE to translate the game in Russian is the backing of people in numbers, large numbers of people that are already playing this game, and by the looks of this thread you aren't getting much support from your fellow Russian speakers.
A mere promise of "many" new players isn't going to cut it.

Bluntly said, a Russian language version won't be coming.