Steven Moffat recently spoke to TV Line and said that 2013 will be a huge year for fans of Doctor Who.

"I've got various plans, but all I can say emphatically is it will be huge. There's lot of decisions we're making that are about making all that possible. It'll be amazing."
He also said that it won't be just a one-off special.
"It won't be just one thing, we'll be doing lots of stuff the plans are quite extensive, and changing all the time. Oh my God, we will hit that year very, very hard indeed."
However, so ideas have been set in stone yet:
"It's so far in the future, so it's only a set of notions,"
Matt Smith has previously stated that the 50th Anniversary will be an "event" and that he wants a multi-Doctor story

Keep up with all the latest 50th anniversary news HERE.