The concept art takes a look at what appears to be some concept work of Gorgrond, and two shots of Shattrath City. It's the Shattrath pieces that are really interesting, because you get a view of the city with the dome in place, and removed -- and the removed version is far more similar to what we've got in Outland today. What's interesting though is that the dome in-game cannot be traveled through, which makes me wonder -- is A'dal's future home under there, or did the design elements change at some point? More importantly, are we going to get in there at some point in the future?
Head to the official post to check out all of the new goodies. And if you have a Warcraft fan comic or fan art of your own, don't forget that you can always submit them to Blizzard to be considered for future updates!