Yes, it shall be a good game!
Here's some info:"After the events of Red Alert 2, the leadership of the doomed Soviet Union devises a plan to travel back in time and assassinate Albert Einstein (whose own time travels led to the events of the previous two games) in order to change history and restore the Soviet Union as a world power. However, during the mission, something goes quickly and horribly wrong and an alternate timeline is inadvertently created, which alters the technological evolution and creates a new, technologically advanced superpower in the East, known as the Empire of the Rising Sun."
So, he may of NOT died! Here's some of my speculation: Maybe Einstien was in Japan for some reason, then Soviets showed up but were thwarted by Japan. Then, Japan took this technology and thus are quite advanced.