Mummelmann on 20 March 2019
I'd call that less of a prediction and more of a logical continuation of a clearly visible trend, this is more or less obvious from where I'm sitting. The PS brand is clearly slowing down and losing some relevance in Japan and Sony aren't doing all that much to counter it, a much more western oriented design philosophy has defined the latter half of the PS3 era and most of the PS4 era, even Japanese devs are taking more and more cues from western ones.
