We're told that a new EF 24-70mm f/2.8L is on the horizon. The source didn't know if the update lens would have image stabilization, or if it would be an EF 24-70mm f/2.8L III.
Previous reports peg two new “professional” lenses would be announced for Photokina, and one of the obvious lens possibilities would indeed be a EF 24-70mm f/2.8L replacement.
THe EF 16-35mm f/2.8L III and EF 70-200mm f/2.8L IS III releases have updated two of the three “holy trinity” f/2.8L zooms from Canon. While this update could be great, we can't help but wish an IS version of the EF 24-70mm f/2.8L existed for the people that want it.
Take this with a big grain of salt for the moment and treat the [CR1] rating accordingly.