Those look like the same artists renditions they have had for months. One of them is even of what they think the 2-door 928 would look like with an updated look. They won't have a 2-door Panamera, atleast to start. From what spy shots have shown, the rear end should have a big spoiler that raises too. Porsche never unveils a new model in a magazine first. An autoshow and their webpage would have it first. Does it say anywhere in that artical that these are actual photos?
http://www.autoweek.com/apps/pbcs.dll/article?AID=/20061002/FREE/61001003&SearchID=73277857484580