www.autosport.com today is reporting that there will indeed be new cars for the 2008 A1 GP season, the cars are expected to be bigger and more powerful producing around 750bhp, over 200bhp more than the current cars. The cars are expected to remain relativly gizmo free however which IMO can only be a good thing. A bit like Champcar then it would seem, although obviously with differnt areodynamics.
Will be interesting to see where the cars are in comparissan to the GP2 cars which I expect will also have been updated by this time.