Now that looks sweet.

A walkthrough of a pre-production model seems to be available at https://storage.net-fs.com/hosting/5766346/47/ .

Living in Switzerland, these are very attractive, and I really hope they help night trains become a completely viable alternative to medium-length trips.

(Last time I checked they were so-so in terms of price for let's say Zurich<->Hamburg. Quite expensive even for a shared couchette, only becomes comparable in price to a cheap flight when you buy a seat only.)