Yay !
I'm not sure how to embed from this site but here it is :
http://g4tv.com/trailers/hdvideos/36914/Call-of-Juarez-Bound-in-Blood-In-Game-Trailer.html
Looks like you'll be playing as Ray from the first game and, presumably his brother (since it talks about controlling the mccall brothers.) Wonder if it'll be both or only one of them.
In either case... AWESOME !