The "Nightmare" trailer above comes with the following lines:
The time is near
They are watching
Your power is rising
Cologne, Germany
You’ve Been Chosen
They are watching
Your power is rising
Cologne, Germany
You’ve Been Chosen
Presumably, BioWare will be making an announcement on this game at GamesCom, which runs from the 13-17 in August. Unfortunately for BioWare, EA may have already let it slip what the game is called. EA has called the video thumbnail "ShadowRealms teaser" on their site. EA also trademarked the name "Shadow Realms" back in March. Oh well, at least the teaser trailer still looks pretty cool.
If you would like to know more, you can check out their official website for Shadow Realms/You've Been Chosen.