Rumours about the 5D Mark IV seem fairly scarce. At least compared to most of the new camera releases we’ve seen over the years. The only thing we know for sure is that it’s called the 5D Mark IV.
Canon Rumors now report that the Canon EOS 5D Mark IV may be released with a 30MP sensor. If true, it would be an interesting new sensor. This would be the first time seeing this resolution in a DSLR.