The men in china ll like it..The song is about them only 

I sincerely hope he is destined to be a one-hit wonder.

I hope he becomes a mega-rich international superstar ............................. 

in the new genre of silent music  and invisible dance routines.

Not sure, coz after see the gagnam style, I expect for something stronger. Yestarday I watched with my wife. It was ok, funny, but ... I do not think it will reach same fame as the GGstyle

Judging by the number of views on Youtube, it's been viewed more than 100 million times in less than a week, it will have international success. Youkou has an obscure way of showing number of views,  I think it is at 1.7 million views. 

I have no doubt in my mind that my local hairresser will include this music in their evening dance-routine. It's just a matter if the owner will force them all to get long hair to match the swinging hair in the music video.

I just don't think it will gain popularity until all the TV shows start to play it over and over again and include the dance in any sort segment, as they have no imagination they will repeat what they did with Gangnam Style. 

Only if it gets big in the US, and only 6 months after everyone in the first world is tired of it.

Gangnam Style was not his first song, nor his last. He doesn't care if Gentleman is as popular as Gangnam Style, he knows it was just a fluke. I personally like Gentleman more, it made me laugh, and the song grew on me. I don't think it will get as popular, but it's still going to be popular.

If it is the same sort of crappy moronic mind rot then it "unfortunately" probably will. What that says about todays mindless music consumer is a completely different question.