From what little evidence we've gathered so far I can't think of anything specific. Their intentions may be revealed soon enough, it's not as if we're going anywhere. I can think of some possibilities, but nothing concrete. They have to get something out of our being here, but I have no idea what that might be.

*Aggravating, for sure. It seems like the best thing to do for now is sit and wait for their captors to reveal themselves, but doing nothing just seems unacceptable.*