When they say "GT86/FRS/BRZ" they are talking about the ZN6 platform. They are using the model name as a sort of brand. Which was Tada-san's intended goal from the beginning. In all likelihood, it will be named similar enough but differentiated.
Myself, I am not opposed to the RWD sedan idea. I'm more interested in whether they make the hatch or not. My opinion on making it a hybrid will depend on how the hybrid system is implemented. I can think of a number of ways this could end in failure or disgrace, such as dropping the MT. They need to maintain the Sports car image without neutering it for a sedan.
The convertible was put on hold but I believe the sedan or the shooting brake style hatchback has a chance. I have heard anything about a proper wagon, unless you just mean a 5 door hatch.
