Just as news is coming out that nine major automakers are skipping the Frankfurt Motor Show, there appears to be growing rumblings that the Tokyo Motor Show will play to not one, not two, but three sports car debuts. It’s already been rumored that the return of the Toyota Supra will take place in Tokyo, but according to Autobild, the Supra will also be joined by the Mazda RX-9 and the Nissan 390Z.