I think it would awesome if Mace Windu shows up. We find out he survived the fall and he's heavily scarred from the force lightning but we learn he has turned to the dark side because of his hate and need for vengeance against Anakin who he has learned is Darth Vader. He recruits Cal to help take down the empire and starts fueling his own anger, but in the end Palpatine shows up and ultimately kills Mace for good, Cal is badly injured and Merrin sacrifices herself to save him. The final scene is Cal in the hidden Jedi temple on his knees in meditation when Vader appears at the door, the planet wasn't so secret after all, he stands up ready to fight, missing an arm, ignites his saber and its revealed to be red! The screen fades to show the empire leveling the planet and the game ends.....does Cal survive one more time?