It seems that Obermatt wants to start a low-cost 3a alternative organized as a cooperative which directly invests into stocks (actually into the stocks Obermatt chooses). Maybe not exactly the thing a Mustachian would want but it may be worth keeping an eye on it. At the moment the website is online where one could register for a newsletter and to get the offer when it starts. They say they need 1000 people in order to get ready:
doesn’t convince me right now, but definately something to keep track of