http://jalopnik.com/378249/rwd-subaru-toyota-sports-cars-officially-confirmed-for-2010-2011
Scratch the "alleged" as we now have official confirmation in the form of an official statement from Toyota CEO Katsuaki "Ken" Watanabe:
"The compact rear-wheel drive sports car is envisioned to offer a new 'fun to drive' experience based on an all-new vehicle platform."