All the Facts we have:
1. The first 5D was replaced after 3 years.
2. Dude, That was like 3 years ago!
3. There was a catastrophe in Japan the like of which we have not seen before.
So, Is it possible: "According to NL 5Diii is a late 2012 camera at the very earliest" Yes. In fact we can say for absolute certain it will be before, during, or after late 2012.