In theirofficial post, BioWare give you a brief idea of who the Dreadwolf is.
He’s a god, maybe, or maybe not.
What does he want?
His methods are “sometimes questionable,” which is something of a euphemism for wanting to kill everyone.
Regardless, they promise that “hell properly introduce himself when the time is right.”
If youhaveplayed, you likely have strong opinions on Solas already, although in which direction?
“Some say he might be an ancient elven god, but some say not.
And some of us can see the burning fandom wars igniting again already.
We do know concretely that the game will be focused onthe single-player campaign, at least.
Completely up to you what you do with Solas, then.
