This is the latest concept from Toyota, the FT-HS which will debut at the detroit auto show in January. This is a CONCEPT that many speculate could reflect the new supra, possibly a hybrid supra, but most likely it is just showing that Toyota might be trying to "de-vanilla" itself. If this is the concept and they do plan on bringing it to production, then it would be RARE for a concept to go from first showing to production in one year. Its only been done a handful of times in the history of the car industry. And based on the looks of this concept, it is no where near production.
The biggest proof i can give is that no offical press release has been given by Toyota, nor has anything been confirmed for '08 like the IS-F. Car magazines and webistes can speculate all they want. They get it right as many times as they get it wrong. If there is no offical press release or announcement from toyota, then there is no car.