Blizzplanet has an excellent synopsis of the panel, but DC Comics has the hourlong podcast available as well in case you want to hear about lore and the comic book straight from Chris Metzen's mouth.
Pictured here is Valeera Sanguinar, a Blood Elf Rogue Action Figure that is not available until October 24th. She is a character that is introduced in the comic book along with the other Action Figures: Thargas Anvilmar, Rehgar Earthfury and Meryl Felstorm.
The thing I find most interesting is that the comic book is a way that Blizzard is introducing new lore to be added to the game in future patches/expansions.
Chris Metzen is highly entertaining and passionate about the wonderful lore he has created. I highly recommend giving the podcast a listen, if you have the chance.
Thank you Dark Yoshi and Onnix for the tip!