Re: 997 Mk2
Following past Porsche upgrade/freshening schedule every three years, I would estimate MY 08. My guess would be direct injection on engines (Porsche has been working in conjunction with Audi on this) and possibly PDK (sequntial automatic manual transmission). Porsche has been working on the PDK for some time but has had issues with the PDK because of the stress caused by the torque of the Turbo. It may be introduced in the Turbo first (next year) followed by intro to the rest of the Porsche line up.