Very interesting adaption of what appears to be motorcycle transmission technology. I think Honda used a similar type of transmission in the bottom bracket of it's sponsored downhill MTB racers a few years ago but never commercialized it or licensed it to any bicycle component maker. They were also very secretive about it's details.
This new design does weigh 2.5 kg so that will be a drawback for the general market. For DH racing, the Honda's extra weight wasn't a handicap but would be for any other type of riding. The NuVinci CVT is the same weight as this thing and the Rohloff 14-speed IGH is a bit lighter. It will be interesting to see if it goes anywhere commercially or dies the death of most "revolutionary" bicycle transmissions.
The translation of the Der Spiegel article was interesting reading in it's own right. It certainly wasn't done by either a native English speaker or a knowledgeable bicycle enthusiast.