This may revolutionize a system and the style of the Japanese school. Meisei high school, the private correspondence upper secondary school in Chiba, Japan opens a cute virtual world branch school in the next spring. Of course students can obtain a graduation qualification on this.
The curriculum is three years, and of course the school expenses are necessary(but it is cheaper than real high schools). This is a new form of correspondence upper secondary school. The conventional system is lonely and boring. However, space and other students exist in the virtual world, and seems to be fun. It can be called gamification of the learning.