Matt Smith in a recent interview has said the following hint about the final end of Ponds: "There's something coming up in the final days of the Ponds that was in The Eleventh Hour," he said. "There's a shot in that. [Moffat's] been thinking about it that long. He always knew how she was going to… I'm saying too much already."
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Fans already know that weeping angels appear in the last "Ponds" episode for Doctor who So I think that's the biggest hint that anyone could get.
Out come 1:
I think that Rory and Amy's last