Lots of variables.
There is lots of stuff flooding in about the 5D3, 1Ds4 and 1D5.
1D Mark V
It’s been said before, but a new 1D in 2011. Announced in the June/July timeframe. Full frame this time around.
5D Mark III
I received 2 different announcement dates. September timeframe and in the 28mp range from a decent source and 30mp and June from an unknown source.
1Ds Mark IV
Another person in the camp of the 1Ds4 being in 2012. 40+ mp and announced in very late 2011 or early 2012. The gist of the comment was the “1Ds” moniker will be discontinued.