The Official Dragon Age 2 site is live. No trailer just yet, but that's coming on the 17th of August, apparently. There is some fey concept art, too, and that possibly links to the last of the details that the site holds:
a whole realm rendered in stunning detail with updated graphics and a new visual style
So possibly not looking like the original. Which could be a good thing. Or could just be a "let's not look like The Witcher 2". It also promises "dynamic new combat mechanics", which could be hot air, or could signal a Mass-Effect-2ification of Dragon Age's RPG processes. Your speculations, readers?
EDIT: Looks like Game Informer got the scoop for this month's issue.