I still reckon Donna is going to die. It all fits dramatically, you see. She has yet to do whatever the amazing thing is that River Song was so wide-eyed about, and it's got to be self-sacrifice. She's done it once, she'll do it again.

If I'm wrong I'l be very annyoed indeed with RTD. Especially as it would seems to fit in with the "no-one dies" ethos, which annoys me.