As mentioned in our roundtable earlier this week, Vu has continued work on the dragon and has brought it a long way since you last saw it on the Pantheon Developer series. He's modeled it out a lot more, and added texture. Check out the results for yourself.
First, the dragon in its early stages, as seen on the Developer Series.
Then, the dragon as it is today.
And finally, for some context and idea of scale, here it is within the game world.