Call it what you will, especially you, trusted...my suspicions, or dare I say predictions, for the new GT4 are as follows. It will be called/labeled a GT4. Not a "718 GT4". Regardless of the model, regardless of the difference in engines, it has been and will remain it's own specific version of whatever model cycle it belongs to. It will likely have a detuned version of the 4.0. One engine...not a 3.8 for a "regular GT4" and a higher performance 4.0. I just don't see how that makes any sense to offer both 3.8 and 4.0 flat 6 engines in relatively limited production numbers, etc., etc. With that said, I'm skeptical of any secondary "RS" specific versions, but you never know. Aside from the club sport type offerings, I think there'll be one GT4 offering, with a detuned version of the GT3's 4.0. Next, rumors about the offering of PDK. A bit harder and perhaps more interesting to "attempt" a prediction. If the engine and transmissions are from the GT3, as all indications are pointing, a PDK is feesible, BUT, a PDK equipped GT4 with the GT3 4.0, however detuned, would be blisteringly quick in the Cayman's mid engine set up etc., especially around the "ring". Enter the conspiracy theories. Such a vehicle, I suspect, would do some serious toe stepping on big brothers feet! For that reason, as others have speculated, it may be produced in 3 peddle form only, as was the first version. So, whether rumors, speculation or predictions, we WILL have a new GT4 as a 2019 model. When the time comes, all will be revealed. Until then, one thing is certain. It will be an evolution of the first version, building upon the remarkable 718 chassis and one AMAZING GT division sports car!