It will fail in China too, but just not quite as horribly.
I have no idea why there are so many people that think China will buy tons of X1s or PS4s. The culture and economics don't support that in the least. Just wait for the post-launch numbers for X1, and take that as a warning shot for the PS4 launch there.
If they launched in 2016 with a $199 discless unit or something, maaaaybe. But I doubt we see 300k lifetime X1 sales, and PS4 probably not a ton more honestly.
Japan won't be replaced by China as a major home console territory, at least not any time soon, and the way the industry is changing, maybe never.