A fanmade logo for the game, nothing official.
First up is a bare-bones plot summary:
"A portal between the worlds unleashes hordes of demons in the land, civil wars rip apart nations and the corruption is limitless. Someone is behind the shadows, drawing the threads which destroy the world. Time has come for the Inquisition.
Take the Inquisitor's cloak and lead the only force able of bringing light into the darkness. Choose the direct method and gather your armies, send spies into the shadows or engage in a political war, make friends and use your connections indirectly: it is up to you how you lead the inquisition. But you'll have to take lead of it from the beginning. Make your player a rogue, warrior or mage and set up your crew from up to ten (!) complex companions to lead them against those who attack you by systematically spying on, revealing and destroying them."
And then a slightly more detailed one:
"The great nation of Orlais, the most powerful empire in Dragon Age, tears itself apart in civil war. The stout men and women of Ferelden struggle to recover and reclaim their nation from the horde of vile Darkspawn that lay waste to its lands a decade ago. The Chantry, the once-unified faith of the Dragon Age world stands divided. The Templar order has broken away, claiming the church has become too lax in policing the dangerous powers of the mages. The Mage circles have rebelled, believing the Templars have become too strict, too zealous in their duties, and too quick to slaughter those who step out of line
The world of Dragon Age is one on the brink of collapse, and when a desperate gathering in the name of peace becomes the epicentre of a magical blast that decimates the Chantry's leadership, it becomes clear that someone or something is manipulating events to drive the world into chaos. From the ashes of that explosion, some new rises: The Inquisition. As the Inquisitor, it falls to you to build up your power and martial your forces, uncover secrets and build connections across the world. You must explore forgotten spaces, uncover ancient mysteries and uproot those who would destroy the fabric of the world."
For possible images related to the art style of the game, check the link.
Finally, a list of potential subtitles for the game. This is intriguing, as BioWare haven't used a subtitle on one of their sequels since Baldur's Gate II: Shadows of Amn, a dozen years ago:
Dragon Age 3: The Breach
Dragon Age 3: Exarch
Dragon Age 3: Inquisition
Dragon Age 3: Inquisitor
Dragon Age 3: Apocrypha
Dragon Age 3: Please Throw Us a Bone on This One, It Will Be Good This Time, Honest
(note: one of these subtitles might not be accurate)
Since this appears to still be in the early stage of development (and the game remains - ludicrously - not formally announced yet by either BioWare or Electronic Arts), some or all of this may have changed by the time the game is finally released. Or it might have been a fake in the first place, of course.