This is one scene I would love to see in epiii. The two top Jedi against the two Sith Lords. It could be when the Jedi Temple is being over run with Clone Troopers. Mace and Yoda are in the hanger bay seeing off the transports of young Jedi accompanied by senior members. Darth Sidious and Darth Vader would appear in the hanger just as a transport is leaving. Mace and Yoda exit a star ship and tell a senior Jedi like Ki-Adi-Mundi to get the children to safety. They choose to fight as this is their opportunity to rid the galaxy of the Sith once more. The fight is intense and even as would be expected. It is a long battle which swings in favour of both Jedi and Sithk. Mace shows tremendous sabre abilities and how powerful he actually is. But ofcourse in the end he is killed. Im not sure how he would die but i would say at the hands of Darth Sidious I dont think Vader would be able to beat him at this young age (although potentially he would ofcourse but he is yet to reach his full potential). Or maybe something could happen to Yoda so Mace must fight both of them on his own and after putting up a good fight is struck down. Sidious and Vader would then think both Yoda and Mace to be dead. It is important to show how good Mace is but ofcourse he has to die at some stage. Mace's death and the temples destruction is a symbol of the death of the Jedi Order.