Cyclingnews and a few others were reporting yesterday that Jason Smith (now formerly of Ceramic Speed) has taken the reigns at Driven to commercialize their direct drive system....
'https://www.cyclingnews.com/...s-from-ceramicspeed/
crowd funded venture capital ($1000 minimum investment). I wonder what it will be worth in 3 years?
https://www.seedinvest.com/driven/seed

They even suggest this system will be less expensive and lower maintenance than a conventional derailleur system, more aero and lighter... cool stuff.