Just heard DA:4 is out of pre-production now.  Meaning that it might release in the same year as BG:3.  Start sharpening the knives.
If this is true, then it will be a tough competitor for BG 3 because it will have multilingual dubbing for sure. 
In any case, I'm looking forward to the mage-dominant Tevinter and the Antivan Crows. I'm hoping for a reunion with Zevran.