No need to question Japan as they have already filled the void that China left. I have friends in Japan and all that they can say is that a lot of store has been accepting bitcoin as payment option so they are moving a step forward but countries like China is taking a step back. If there are big news coming from China I think it will really bring good impact to the ecosystem. However, we still didn't forget what they did earlier. So I guess its gonna be a mix emotions once they go and enter bitcoin market again.
it is a great news! By the way, before or after, china MUST enter in this market and legalize ALL. No doubts about that.