So finally they’re on the market 
Front wheel 520 grams
Rear wheel 540 grams
Looking at the price without medical assistance seems not recommendable…
How much are these?
Official Korean price 800000 KRW = 600 € = 790 US$
Unfortunately I don’t know an European or American official price yet, estimated are 500 - 700 €
Wow, very cool.
I wonder how much weight they save over the stock wheels?
I would actually prefer them in 16" so I can keep my Big Apple tires on, but I am surprised someone made these.
Now, I can only pray for a carbon frame.
As the original wheels (18" without brake rotors/freewheel/tyres/tubes) are weighing
~ 650 grams rear and ~ 625 grams front, you might save about 105 - 110 grams per wheel 
A carbon frame is already available. Was able to see and touch one. The crank arms are made of carbon fiber too.