The Dawn mission was supposed to end after its rendezvous with Ceres, but now, reports say that the Dawn team has asked NASA to extend the mission to visit a third asteroid.
There’s only a small amount of propellant left, so there’s only a limited selection of possible destinations for Dawn at this point.
Chris Russell, of the University of California, Los Angeles, is the principal investigator for the Dawn mission. He told New Scientist, “As long as the mission extension has not been approved by NASA, I’m not going to tell you which asteroid we plan to visit,” he says. “I hope a decision won’t take months.”
So I ask this question to the stackexchange community: can you make any educated guesses about this "third asteroid"?