At Real World Cryptography 2016 (a conference co-organized by Panoramix consortium coordinator Aggelos Kiayias), mix-net inventor David Chaum (who is also a member of the external advisory board of the consortium) presented a new mix-net system called cMix. A technical description of the system can be found in a tech report here.
Consortium coordinator Aggelos Kiayias was interviewed by Wire and Techtarget regarding the technical aspects of David Chaum’s system. Read more:
http://www.wired.com/2016/01/david-chaum-father-of-online-anonymity-plan-to-end-the-crypto-wars/