Hey Guru -
2015 has a video out. They were showing it at Huntsville last week. I'm sure we'll see it online soon. Keep checking nss2015.caves.org for updates.
Same answer for us in 2016, most of our updates will be on social media for a while yet (CaveChat,
Facebook,
Twitter, etc). Eventually, we'll launch something at
nss2016.caves.org.