While the basic code for translations is in the game (Witch Hunter Izana runs on the same engine and is getting a Japanese translation), the actual task of translating the game is a monumental one even with machine translations and will probably take a very long time even when the game is completed, which it isn't.
There would need to be a quite dedicated Russian fanbase willing to translate the game and deal with the 100 quirks that will come up, and I don't personally have the time right now. Even a much, much smaller project like WHI took several months to translate.