Already seen it in the focus group in June (posted this elsewhere, but figured this is a better spot). The "rendering" red car is IT. Sorry for those that don't like it, but that's the car, 99% of what I saw even down to the sharkfin antennae.
Oh and by the way, the one we saw in the focus group was a 6-speed. They told us it was the WRX. Additionally, we were all sedan owners (7 of us total), so they seemed to be pretty interested in sedan owners for that particular session.
They showed it alongside two hatchbacks though, which was weird, the Golf and new Focus. Got to sit in them all. They would not let us open the engine bay on the 2015 WRX.