It looks like the next event will be Saturday July 23rd 2016, probably going all weekend. This is based on a post on the Russian blog by R4UAB. According to Google Translate the event will be “dedicated to the life and work of the first cosmonaut Yuri Gagarin.” Google Translate also mentions “voice communication with the Earth,” which is very intriguing.
Can anyone who reads Cyrillic/knows Russian tell me exactly what the part about "voice communication with Earth" means? I want to know if the cosmonauts will be talking to amateur radio operators on the ground. The link to the original blog post is here: http://r4uab.ru/?p=12122
My "ISS SSTV Reception Hints" page is here: https://spacecomms.wordpress.com/iss-sstv-reception-hints/
AMSAT-UK has a similar page here: https://amsat-uk.org/beginners/iss-sstv/
73, John Brier KG4AKV