just found this on the german blizzard gamescom site:
http://eu.blizzard.com/de-de/company...scom-2014.html
when you take a look at the schedule below, you can see that on thursday at 18.00 a special warlords of draenor event takes place;
translated from german:
18.00: World of Warcraft: Show & a special Event for Warlords of Draenor
Stop by for lots of entertainment, insights and free loot ... and a special event for Warlords of Draenor!
also, there will be hold a livestream, but only on friday/saturday and sunday...
it smells like the cinematic!