of course not if you accept the pre-rendered footage will be "reached".
I think most people "believing" that some of the CGI shown will be reached and maybe surpassed are making a common mistake at looking at history and trying to predict the future from it.
They remember that in the PS2 days, before release, Sony showed some really cool "realtime demos" (the infamous and very ugly "GT2000 demo", "Tekken demo" etc) which were obviously realtime and looked great at the time, but 5-6 years on everyone saw that the PS2 had real games with much, much better graphics under all points of view.
So the understandable misconception is that Sony will "do the same" and eventually, PS3 will be able to surpass what are obviously CGI videos shown prior to release.
I'm not saying they will or they won't. Whether they do or don't, it's not up to me to say - although i do have an opinion on whether they will, and whether anyone should use CGI to raise expectations prior to a product's release - that's just a matter of wait-and-see. But the act itself of predicting the future using only history as an element of analysis is flawed, especially seen how what happened 6-7 years ago has no relevance to the present (different company structure and objectives, different hardware, different competition and timelines, different century etc)