Man that's way later then when "Let's Kill Hitler" aired August 27 2011
And that was the second half of the series. Basically we're possibly looking at almost 60 weeks with only one new episode.
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And given that they'd have to start production very shortly after work on Series 7 finishes, I wouldn't be expecting Series 8 in 2013 unless it's just the first few episodes airing between the Anniversary and Christmas.
Wouldn't that be consistent with Matt Smith's claim of working a straight year?