The latest rumours about the upcoming models :
997 GT3 : 415 Hp,3.8 dry sump,PSM in a "racing" configuration(less intrusive that on the other
997 range),special colours,and optional 380mm PCCB brake disk(front),maybe PDK shiftgear.. due in march/april 2006
997 Turbo: 480-500 HP, due in Germany around June 2006.
997 Turbo S: 510-535 HP, due in Germany earliest one year after 997 Turbo introduction, if the 997 C4/C4S and Turbo are very succesful, later
997 GT2: around 2007, latest rumor indicates even not earlier than 2008.
Rumored power up to 540 HP. Autobild claims even 550+hp.