Poll: What happened to Katherine?

Katherine driving towards the town border, thinking she's going to Boston, in Episode 1.13 "What Happened to Frederick"

The last time time we saw Katherine, she was driving towards the Storybrooke border. Then her car was discovered by the side of the road, the airbag inflated, but no one inside. The next episode didn’t give us much in the way of clues. What do you think happened?

What do you think?