You will do the English test no matter what. The Japanese have their way of doing things and there is no way to circumnavigate around them. The only concession to doing ALL the training is if you have a type rating and then you don't do that part of the course. Apart from that, you will do everything, including the English test, even if you've already got it stamped in gold all over your JAR licence. This is for the issue of a JCAB licence and they are certainly 'thorough' in the way they like things done
PS: Even those English from England sit the English Test