While taking a photo of a camera set, he also accidentally captured a high resolution (7360x4912) photo of their in-progress Warlords of Draenor cinematic story board.
https://www.flickr.com/photos/ackdoh/11053742104/in/album-72157638070235813/
Going through his history, you'll find other interesting information about life inside the Blizzard offices. For security reasons, many of these pictures (particularly the ones showing ID badges and internal IP addresses) should probably be removed or fixed.
Production Timelines
These storyboards tell you a lot about their work behind the scenes. How long it typically takes to create a cinematic video, how it fits in with other cinematics they have been working on, and it can give you a good idea of when the game will the ready. After all, the game won't be ready until the cinematic is finalized and ready for showing.
Based on the story board, it looks like this is just the beginning of the cinematic, or possible just before the half-way point. Development of the cinematic apparently takes several months, and this doesn't look like it will be completed until around July or August. If that's the case, we're likely looking at a release date of the game sometime in Q4 2014. My bet is November, since releasing games in December has grown unpopular with Blizzard apparently.
Cinematic & Game Prediction
Everyone pretty much knew the game name long before Blizzcon, so the game location set in Draenor was obvious. What we learned from the disappointing in-game trailer (which made it seem like the game was being rushed) and the panels is that Warlords of Draenor. Metzen has promised that this is going to be "THE MOST KICK-ASS EXPANSION SET" ever created however.
It takes place after the Siege of Orgrimmar, where Garrosh is put on trial but then escapes as time travel is somehow used within the game. No one really knows any details of the story from the panels though, other than that it incorporates heroes from the past.
We can see that the cinematic has Mannoroth and blood dripping scenes, so this is definitely the Mannoroth blood ceremony that's taking place on the planet of Draenor. If this is the Mannoroth blood ceremony, then Gul'dan and Grom Hellscream are also present and the cinematic will take place about 35 years in the past. It shows orcs travelling to the ceremony (torches by night), Mannoroth's green blood, and tons of fire, smoke and explosions at some point later. In this cinematic though, that there is an attack sequence during the drinking ceremony which never happened in the original history, so this appears to be about a different version of history taking place. So something goes wrong, Garrosh likely intervenes somehow and changes history, and none of the Orcs will drink the blood - meaning that Grom and all of the other Orc tribes will maintain their brown color in the next expansion pack. It sounds very cool, it's a very well known and historic event. There have been many rumors online about time travel and Garrosh, so I suspect that this is probably the Iron Horde, led by Garrosh, attacking the ceremony to make changes to the future. There's a "glaive blast" sequence which would be Mannoroths weapon and ballista being destroyed, and Grom's Gorehowl will probably make an iconic appearance in the upcoming cinematic.
None of the Raid bosses have been announced yet, but the cinematic definitely provides more insight into what to expect. For example, Gul'Dan and Mannoroth will definitely be bosses, and that means that Archimonde will likely be present as well. Probably as a Raid Final Boss, which makes the most sense. And we can expect several famous historical enemies, like Killrogg Deadeye - my favorite.
I've hunted around, and this is a ton of brand new information that no one is aware of. It'll be fun to watch the fans get really excited about seeing Mannoroth again. I've sent these leaks to PC Gamer and Joystiq, maybe they'll pay attention this time. It's been a while, but I seem to recall a publisher or two that would take all credit for my information and never once mention the source. I sent it to Kotaku too since they love this type of stuff. I know.. ewww gross.. but garbage clickbait websites are the only places that gamers visit these days sadly. Haven't heard anything back yet. And, I'll drop some hints on reddit sometime in the future too.
The Only Other Thing Out of Blizzcon 2013
Last years Blizzcon was cancelled so this was supposed to be the big one: a redemption story to make up for past events.
Unfortunately, the feeling I received from most goers was that Blizzcon was once again a disappointment as they only re-summarized things that we already knew about. The one, and only thing, that attendees were actually excited about were the Updated Character Models. Nothing new was really announced, just a rushed WOW expansion set.
The one thing I absolutely hated about this Blizzcon though was a comment made by J. Allen Brack. A question was asked if there were any plans to create Vanilla WOW (or other expansion) servers.. a question that has been asked many many many times over the past several years. However, his response was just asinine: "No! And, by the way, you don't want to do that either. You think you do but you don't."
It's fairly well known within the company that he always hated vanilla, but I didn't expect him to make such a public and foolish statement. You can see it for yourself here by skipping to the 30 minute mark or so. He's been against the revival for some time, even working actively against it, but he's completely wrong. If Blizzard were to ever launch Vanilla WoW Servers, it would do incredibly well. I think the number of users returning would completely shock upper management, and their servers may even be unprepared for it. It's sad though when the Production Director for World of Warcraft vehemently demonstrates their lack of game design understanding and why the original game was so addictive.