If an STI ever comes it will be right before the new model arrives, just like every other sports car -ever. You start with a base and they progressively get better and better to keep sales strong until they fall off right before you drop what everyone has been asking for, right before you release a new model and do it all over again. The Mazdaspeed Miata was only for the last 2 years of the NB before a HUGE refresh of the Miata; Camero's started with the SS and ended the model run with the z/28; 5th gen Mustangs started with the GT and finished with the '12-'14 Shelby GT500, Corvettes start at base, then launch a Z06, then a ZR1, Ferrari & Lamborghini do it with each car getting ever more so challengy as the years progress; finally, the myriad of models that encompass the Porsche 911...
And, I wouldn't expect anything better than a tS.
We're at the first step of "special" models with the FRSRS1.0 & the Series.Blue. If they follow every other ports car marketing scheme, I'd place my bets on us getting the tS in 2017, maybe an STI in 2019 and a new car in 2020.
Meanwhile, I'm over here sitting in the corner with my Series.Blue waiting for the 4th gen Rx-7.
