Grey's Anatomy News and Spoilers

Here's some latest scoop from the Grey's Anatomy set:

The following will take place before the end of Season 3.
One couple will get married.
One couple will get engaged.
Someone will die.
Someone that we thought we dead will come back.

Post your answers in the comments.
Here are my guesses:
Christina and Burke will get married.
George and Callie will get engaged.
Callie will die.
Not sure yet about who will come back from the dead. All I know is no way it'll be Denny.

What do others think?

[grey's anatomy]