In four sneak peeks from Grey's Anatomy's upcoming episode, the Seattle Grace residents' fates appear more up in the air than ever as the much-anticipated eighth season finale approaches.

Also, Bailey's interest in a new case at work irks Ben.

In "Migration," the penultimate episode of the season, Meredith and Derek are apparently at odds over a job offer that would entail them moving all the way across the United States.

Der wants to go. Mer wants to stay. It could get ugly ...

Meanwhile, the residents celebrate the completion of their boards with a rager, which is interrupted by a couple of phone calls. The first, fielded by Cristina, turns out to be great news.

The second, taken by April? Not so much. Kepner then proceeds to dance away the pain with reckless abandon. Wonder what will happen when she inevitably hits the wall ...

Finally, Ben's big plans with Miranda are put on hold thanks to a stomach worm. Not hers, but a case at the hospital that piques her interest. Comment on all the sneak peeks below:

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