I'm confused because some articles says that yahoo japan bought 40% of bitarg but some are saying that bitArg refuses to partner with yahoo japan, which will make this impossible to happen for now https://news.bitcoin.com/japan-exchange-bitarg-denies-yahoo-acquisition-press-reports/ so on which one is the truth, we still don't know but of course if this will happen, it will be a big thing since yahoo japan is a huge company and hopefully this will be available to other international cryptocurrency traders. Japan is doing a good job on developing blockchain technology, there is also a japanese bank that will be releasing their own cryptocurrency soon.