Originally posted by: Terracosmo
I think Luna will die for the following reasons:

1. Generic Gundam reasons:
a. Girlfriend of the main character (this didn't apply to Lacus, but then again, she didn't fight in the same manner)
b. Being handed a suit that was originally owned by someone else

2. Something must trigger the inevitable Shinn VS Rey fight (which will happen as seen in the opening - and Seed's openings are always correct with those things)

Rey killing a hesistant Luna sounds like a reasonable reason for the impulsive Shinn to switch sides, does it not?
You have a point. I think luna may want to switch side before Shinn knowing her sister lives
and knowing the chaimans true plot(maybe) and Rey killes because he is loyal to Gil to the end.
As shown when he shot at both athrun and Meiryen(sp), this would most likely make Shinn switch side no?