Everything I've read about Dragon Age sounds like it's going to have a huge amount of choices and consequences, which is what I think you're looking for when you say deep RPG. Plus they've said they want it to be a more traditional RPG, hence all the Baldur's Gate namechecks. If they say they want to draw from that well again, I don't see any reasons to disbelieve them. I'm also of the mind that you can't really show choices and consequences and all that in the trailer, at least not effectively, but the trailer's been debated to death anyways. EDIT: Also you can play in isometric, so a lot of people are gonna eat that shit up.
Also, I double posted and feel like an asshole. Sorry guyz
Also, I double posted and feel like an asshole. Sorry guyz