It exists, but will it come to market?
We have confirmed that a test camera with around 80mp is definitely in the wild. A few things to note about the camera. It's apparently in an EOS-1 body and has a larger than 3.2″ LCD on the back. The camera also apparently shoots at a very high frame rate.
What we can't confirm is if this test mule is actually going to be a consumer product. We imagine there are various sensors currently out there. We're told via a third party that Canon could announce this new EOS-1 before the end of 2013, however it would not be shipping until 2014.
More to come…