I am leaning to Grey Warden being a rogue or not being in the game, personally. There is a lot of art for him and the alpha, but no rumored writer (where most of the other semi-confirmed companions have been mentioned in some capacity by a writer... P.Weekes was talking about Iron Bull months before his confirmation in the magazine). So I am wondering if maybe he just ended up being cut for some reason.
I hate to think of him being cut for shallow reasons, because he was the only other male I found attractive 
But seriously, I don't think he is a rogue, unless it's a blatant attempt to trick us, since he has appeared as a S&S warrior both in game play footage and the armor demo on the BioWare blog.
But if he's dropped, and that means Cullen's a companion, it's a sad, sad sacrifice I'm reluctantly ready to make.