I only see a dying fad because Japan's been getting a ton of bad rep nowadays. The earthquakes (bless them), the unreliable nuclear plants that's caused world crisis, Asian countries like HK protesting Japanese plans to restart the plants, the undiplomatic government, and the US military has been pushing their boundaries and presence in Japan, the lousy FF games and so on. I mean Japan's industrial standards are still world class, don't get me wrong, but lately the bad has outweighed the good.
Fashion-wise, I wish more Japanese styles caught on in our streets but they're still too outlandish for daily wear. You don't see lolita outfits worn by politicians, engineers, businessmen or food vendors. No one would take you seriously.