Good News Everyone!
The Dragon Age: Inquisition feed is teasing a new announcement, displaying only this image and proclaiming

We're hearing reports of Increased seismic activity around Thedas...
For those who haven't noticed this is one of the cavern areas on the Storm Coast, several of which were involved in the Keeping the Darkspawn Down quest and previous twitter remarks have suggested that perhaps the next DLC is somehow centered around the Deep Roads and or Dwarves/Darkspawn. Hopefully we won't be waiting long to find out the truth behind this as there is a press conference for Gamescom tomorrow at 9am BST.
Source: http://www.gamereactor.eu/news/333873/Dragon+Age+announcement+teased/