Grey's Anatomy: Flight (Promo & Mild Spoilers)

Warning: spoilers.
 
Scroll down to watch the first six minutes of tonight's 'Grey's Anatomy' finale.

Last week left off with several of the doctors getting on a plane. They were flying to another hospital to assist with the separation of conjoined twins. Initially it was supposed to be Cristina, Meredith, Derek, Lexie, Sloan, and Alex on the plane, but at the last minute Arizona was so mad at Alex (for deciding to accept a job at Hopkins) that she went instead. As we know from the promo, only Sloan appears to have escaped injury in the crash. Cristina has a dislocated shoulder, Meredith has a head injury, Derek's hand is injured, Lexie is trapped under part of the plane (and tachycardic), and Arizona has a severe break in her leg. The previews have promised us that "one will die"...which is a little unsettling to say the least.
I actually wish that they would stop revealing these things, since I would rather be shocked in a moment then have anticipation build for a week. Especially if that anticipation turns out to not really be warranted. For instance, what if it's the pilot that dies? He can't feel either of his legs, so that can't be good. Still, it's unlikely to be him--mainly because Rhimes (the show's creator) has announced that a series regular will die in tonight's episode. Ironically, we all know who it won't be. The actors who play Cristina (Sandra Oh), Meredith (Ellen Pompeo), and Derek (Patrick Dempsey) all signed their contracts last week, and the show has officially been renewed for a ninth season. Leading us to the question of the day: who will die in tonight's episode?

To clarify, our remaining choices (provided the doctor who dies is in the plane crash) are Lexie, Sloan, and Arizona.

Lexie has not had a major storyline this season, and perhaps because of this internet speculation points to her as the unlucky doctor. However, Lexie finally revealed to Sloan that she still loves him last week, and their relationship did provide a lot of action (pun intended) during season seven. Maybe, just maybe, this will be enough to protect her?

Arizona has played a more active role in the storyline this season, but it's possible she might be the one to go. Justin Chambers, who plays Alex Karev, just signed a contract with the other original cast members, so he's not going anywhere. That means no Hopkins, despite the fact that he adamantly stated he was going there at the end of last week's episode. If Arizona dies, it will certainly give Alex a strong reason to stick around. It would also (potentially) give Lexie a much larger role in next season's story. Who wouldn't want to see Sloan and Lexie help raise Sofia? Plus, Jessica Capshaw, who plays Arizona, is pregnant with her third child, and it's possible that this may have led her to ask to leave the show.

Now, that being said, Sloan could also die. He has had a side-story for most of this season (dating a doctor who doesn't work at Seattle-Grace), but he has also mentored Avery, been Derek's sounding board, and been the object of Lexie's desire. Hard to say if he will be the one to go.

What do you think? Who will die tonight? And if you had to choose one of the doctors to go, who would it be?

And finally, is anyone else seriously worried about Derek's hand? How is he possibly going to be able to operate again?