Porsche considering another model?

A Porsche representative told Germany's Welt am Sonntag that the company is considering a "fifth model" after the introduction Panamera. This statement is somewhat confusing because the Panamera would be Porsche's fifth model. Porsche's lineup currently includes the 911, Boxster, Cayman, Cayenne. However, if Porsche considers the Boxster and Cayman Cayenne to be the same model line, then this might indicate a new model is indeed under consideration. What would that model be? There have been rumors recently of a "baby Cayenne," but what enthusiasts are really interested in is the proposed revival of the Porsche 928. Road and Track recently said a new 928 (shown right) could come in 2010.