See the Press Release at DPR:
http://www.dpreview.com/news/2013/08/27/ricoh-introduces-weather-resistant-flash-units
Weather sealing and a video LED light source are added:
"New" 540II:
"New" 360II:
"The AF360FGZ II and AF540FGZ II will be available for purchase at www.us.ricoh-imaging.com and retail outlets nationwide in September 2013 for the suggested retail price of $429.95 and $629.95, respectively."