The only Canon news I've heard was 1Dx and a few replacement lenses (which ones you can check the rumor sites about).
Realistically on the 5DII replacement IF it's a 1Dx sensor in a 5DII body will not actually be in anyones hands till 6-9 months after the 1Dx hits peoples hands.
However, if it's not a 1Dx sensor in a 5DII body, then it may come in 3-6 months after announcement of the cam which isn't for a few months if at all (so either way it's more then 6m to a year away).
Unless of course something major happens and Canon feels the need to cannibalize it's own 1Dx market for the sake of keeping up with the Joneses (nikon)
Best,
Adam