I was in the same seminar as the gamingreport.com guy.
I think the concept art looks promising, and the idea of a "swashbuckling dark fantasy" (that's from the slide show we saw, although curiously omitted from the press release) in a world where magic is used in everyday life seems pretty cool to me.
My only complaint is that they didn't reveal enough about it; they should have waited until the setting was more developed before announcing any details. Q&A was hampered severely, with Bill Slaviscek saying over and over "We can't reveal that yet." I asked for one example of how the setting is both dark and swashbuckling, but Keith Baker wasn't permitted to answer, even though he said he could provide one.
Teasers are fine in movie trailers, but in an interactive seminar, I feel that it's out of place and frustrating. They barely exposed the tip of this campaign world, and may have misled some people. For example, from the Q&A, I got the feeling that dinosaurs do not play a huge role in the setting. They are there because "dinosaurs are cool" and "the MM has dinosaurs". I also remember "This is not Dinotopia".
Overall, I'm not sure whether I'm excited about this campaign world or not...I just didn't get enough info. I do think it will be good, but I'm not sure if it will be for me and my group.