i found this
Go back a decade and you'd find Porsche being 100% dependent on the legendary 911. Come forward to 2001 and Porsche has successfully launched a new model line (the Boxster of course) and has, successfully, replaced the original 911 with the "new shape" (996) 911. Still, even with a 3rd model line in the pipeline (the Cayenne SUV is just months from being launched), our sources are suggesting that Porsche bosses believe that there is room for a 4th model line in their company for the 21st century.

What is this going to be? The most likely scenario talks about a big 2+2 coupe (a successor to the 928?) powered by a 450 hp twin-turbocharged V8 engine that could be on the road in 2005!

Certainly quite interesting information. I believe too there will be a big coupe, would it compit with the BMW 328ci or CLK? Maybe it will be more expensive....