There have been rumors of a hybrid 911 coming for more than a year now, with some suspicious bits in a mule seen last year, and early prognostications being that Porsche is lining up the powertrain for the 911 Turbo to produce somewhere around 720 horsepower. That would make sense as the first stop for the learning and components of the 918 Spyder to trickle down to the 911 range. If Porsche migrated the 918's 156-hp electric motor unchanged into the 560-hp 911 Turbo, you're looking at a 716-hp monster that accelerates even more quickly.
A hybrid 911 Carrera model would sit above the standard turbocharged engines. Elsewhere, the 992 model will come on the current MMB platform, and the exterior will be one of evolution, naturally. Interior upgrades will include a fully digital instrument panel.
Or, going off the reservation, former Porsche chairman Matthias Müller said earlier this year that, "the high-speed high-tech laboratory of the 919 Hybrid will benefit all our future vehicles" in reference to expanding the Porsche model line to seven models. At the time, Bloomberg wondered if Müller was referring to the long-rumored Ferrari competitor Porsche has debated.