What do you think about the ASEAN + 3 Zone?

It is OK so Asians would finally unite with each other and build a strong united supranation in this part of the globe. We can be a superpower if this occurs, since this ASEAN +3 Zone would contain 2/3 of the world's population, 2/3 of the world's living languages, and 2/4 of the world's economy. Tourism would also boom because imagine that if you get a visa for Japan, then you could go to other scenic spots like the Philippines and Indonesia too. It would really make a really cool supranation.