Probably because they’d pronounce it “Un-reashed” and that would just be silly, SEGA Japan has taken it upon itself to rename Sonic’s latest outing for Asian territories.
There were massive rumours that the game had suffered a name change – heavily debunked by SEGA Europe, with the explanation that World Adventure was merely a work-in-progress title. Turns out nobody keeps each other informed in the land of SEGA, and now we have semi-confirmation (semi because it is Japan only after all) in the form of a new official website.
There’s really not a lot else going on with the website, so don’t expect waves of information. But if you’d like an updated Sonic Un… World Adventure experience check it out. The website does look very nice though.