"The wait is nearly over..."
Those who have pre-ordered their games in North America have the chance to play it this Monday night. Tomorrow it will be officially released to everyone in North America the first time, and a few days later in the rest of the world. Accordingly to that, BioWare released their launch trailer, A Wonderful World.
Update: There's a promotional game on the official website, with which you can earn promotional items in Dragon Age: Inquisition. The goal is to unveil Vivienne, Iron Bull, Varric and in the end, the Inquisitor. You have to spot three veil mists in their respective videos, which will give you some additional information of the game, such as tidbits of the Orlesian tradition of masks, the Venatori, Bianca, and more. You can go to the game straight from here.