What do you think, Doctor Who Fans?

I think we are being led to speculate that the girl is the daughter of the Doctor and River, with Amy's thing sort of a smoke screen thrown in there to confuse some of us. As the Doctor and River parted, after the kiss, he says, "I guess there's a first time for everything." Of course, all of that could be a big fake out, and the girl could be someone else entirely, who we haven't found out about yet. I do not think she's Jenny.