For at least a week or two, this is the last I am going to work on this art. I have been staying up all hours to work on it. It's becoming an unhealthy obsession, and I'm never, ever going to be able to be satisfied with the anatomy. But his face looks okay. Mostly. This might become easier once the game's out and I've seen his face/expressions/etc. more. Maybe.
So for the time being I have it available as a full size download on Deviant Art if anyone's interested: Click Here
(Also does anyone know how to hide the link behind some text? Because I couldn't get that to work and I wanted it to...)
But yes, I'll be very excited if Solas is the reveal. Iron Bull would be okay...
I do wonder if it will be someone else, specifically a human, but Solas might make more sense, because I suspect he'll be important to the plot in a major way. We're dealing with Veil Tears. So, someone who is an expert on the Fade will be invaluable. In theory, the most important characters will be done first, and they may get more time spent on them dialoguewise etc.
Which, if true, would explain why Alistair, Morrigan, Anders, and Merrill all got more attention than some other LIs/characters... they are the ones you are expected to have, and have major plot relevance. So they'd have been worked on more.
Very eager to know what they mean by saying he's hot pepper candy. Maybe he's a nice guy but his conversation is... spicy. 
Edited to add:
Solas> *in a compromising pose* "Draw me like one of your Orlesian girls."