On AlternateHistory.com I said I'd do a 'cool' map of Japan where it won World War 2, and I have, sort of.
It's actually a Japan that stayed out of WW2, it never allied with Germany and became increasingly involved with the US instead. Under the USA's influence the initially Japan-centric East Asian Co-Prosperity Organisation gradually gradually became more and more capitalist and less centred around Japan.
Japan also became the nation to turn to for former Asian colonies when they needed money to stimulate their economy and to industrialise. As a result, a few former European colonies have become heavily economically involved with Japan, and have joined the EACO as a result.