The timeframe they set it in, PT is not possible sure there may be a bit of episode 3 crossover but the Separatists are destroyed and the Republic is now the Empire.
Lucasarts draws people in through its gameplay and not cheap commercial games made through movies or popular games that they have bought out cough* EA *cough
I think we are jumping the gun a bit here we have not seen one screenshot and already we are calling it perfect.
Age of Empires 3
Empire at War
Rise of Legends
Battle for Middle-Earth 2
Let the battle begin.....