An inlet/outlet on the Carrera 4? That would surely be something new. I don't see the functional reason for this and it would scare off the Carrera 4 customers en masse. Hence IMHO I find it very unlikely.
As the previous spy pics reveled there appears to be a red reflector underneath the sticker. Unless this is a double disguise to fool us all
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997.2 Carrera S in Carrara White. PASM-Sport Suspension (-20 mm), PSE.
987.1 Boxster S in Arctic Silver. OZ Racing Ultraleggera Wheels, H&R Monotube Coil-Over Suspension, H&R Anti-Roll Bars, Sachs Racing Clutch, Single-Mass Flywheel, IPD Plenum, GT3 Throttle Body, Recaro Pole Position Seats, PSE, Alpine Head Unit and Amplifier, Focal Speakers