…. and not a 1Ds update.
The contact mentioned an announcement for a new high end Canon camera would be coming in March. It will NOT be a 1Ds Mark IV by the sounds of it. The general consensus is it will be a 5D Mark II replacement or bigger brother.
The 5D Mark II turns 3 at the end of the summer 2011, there are a few bits of information that put a replacement before its 3rd birthday.
A few dealers have mentioned a significant slowdown in 5D Mark II sales. The same dealers said the D700 wasn't selling well anymore either.
I will say pinning down exact announcement dates this far in advance is difficult.