Red Hat's Vincent Batts gives a presentation at systemd.conf 2016 conference entitled, "What's next for containers?". It is a good overview of where the various container projects are (with no mention of OpenVZ however) and what work needs to be done. I enjoyed his assessment that the first thing that is next is, "Get Past the Hype," and to, "Make Containers Boring." Vincent goes over several of the userland tools as well as covers the areas where Linux native containers still need work. Enjoy.
There have been a ton of conferences in the last couple of months... and luckily a lot of the presentations were recorded and have been posted. Here is Lennart Poettering's presentation from the systemd.conf 2016 conference on, "State of the Union / Portable Services". Enjoy.
Did you know there was a systemd conference? Well there is... and it was even held recently... and the videos from it were published rather quickly. Here is Lenny giving a status update. Enjoy! The first 10.5 minutes are announcements so skip to 10:30 to get to the start of the actual talk.