SPOILERS FOR DRAGON AGE: ABSOLUTION AHEADAs it turns out, Dragon Age 2's Hawke is very, very bad about making sure the things and folks they kill are actually dead. Dragon Age 2 takes place across a decade or so of happenings in Kirkwall, all of which Hawke finds themself in the center of as the burgeoning Champion. This means they fight/deal with figures like Bartrand (possessed by the Red Lyrium Idol), the Arishok of the Qun, First Enchanter Orsino, Knight Commander Meredith, Duke Prosper, and of course, Corypheus. And at least one of these characters may be important to Dragon Age: Dreadwolf's plot.
As many know, Hawke didn't actually kill Corypheus though. It was hinted at the time but confirmed come Dragon Age: Inquisition that Corypheus can transfer his consciousness, much like Archdemons. The Inquisition and Varric bring in Hawke to help, but depending on the choices made for Hawke in Dragon Age: Inquisition, they may or may not be around to realize they failed to kill another foe of theirs: Knight Commander Meredith. And she seems determined to make that Tevinter's problem, with Tevinter being the setting of Dragon Age: Dreadwolf.
Dragon Age: Dreadwolf and The Crimson Knight's Invasion of Tevinter
In the finale of Dragon Age: Absolution, players learn the identity of the Crimson Knight, the one who ordered Hira to seek out the Circulum Infinitus. The show's ending leaves it open for a season 2, but based on the Crimson Knight's decree of a war against Tevinter, it only makes sense to this villain to return in Dragon Age: Dreadwolf. Or, at the very least, the impact of their war. The thing is, the Crimson Knight is revealed to be Knight-Commander Meredith.
After her supposed death and crystallization in Dragon Age 2, it seems she was moved to a portion of Kirkwall manned by Red Templars. Over time, specifically following the closure of The Breach, Meredith would quickly grow into a huge Red Lyrium structure with a human trapped inside. All players can do is hear her speech and see the movements of the silhouette, but The Crimson Knight is no doubt Knight-Commander Meredith. Her war with Tevinter could easily be a story within the greater frame of Solas' actions to tear down the Veil, and the mysteries of Red Lyrium is something fans have wanted answers to forever. It seems to all be converging on Tevinter.
With Hawke potentially being dead, that's an unfortunate circumstance; this remains a compelling reason to leave Hawke alive in Dragon Age: Inquisition, if players needed another one. At the same time, it might be wise to keep an eye out on all Dragon Age: Dreadwolf lore even remotely tied to Orsino, Duke Prosper, the Arishok (not to be confused with the latest Arishok, Sten from Dragon Age: Origins), and so on. Clearly, Hawke didn't poke them with a stick after killing them.
Dragon Age: Dreadwolf is in development.