The EF 24-70mm f/4L IS will soon be kitted with the Canon EOS 5D Mark III. And may also come to EOS 6D some day.
The release date for this 5D Mark III with 24-70mm f/4L IS lens kit is June 13, 2013.
The price for this kit is not available yet.
The EF 24-70mm f/4L IS now get $200 off for $1199 at Adorama.