In Japan PS4 is nowhere near doing as well as in the rest of the world and it's not like there is much announced for that system to sustain sales in the coming months/years. When PS5 will launch in 2020 at the earliest and if nothing drastic is done by Sony they probably will barely have a presence there. Seriously as things look right now 2019 and 2020 can only appear really ugly for them in that region, a situation that we have never ever seen before.PS4 is the best selling console in the world at the moment, and it's on track to one of the best selling consoles of all time. What, exactly, makes you think "they for sure need to do something"?