Canon EF 70-200mm F2.8L IS III zoom lens is coming! According to the latest rumors from CR2. This new lens will be announced in the 2nd half of 2018, most likely at Photokina 2018 in September.
Canon EF 70-200mm F2.8L IS III lens will have a new design with a new IS system and optical upgrades and a little bit lighter weight to replace the current EF 70-200mm f/2.8L IS II USM lens.
The announcement for Canon EF 70-200mm f/4L IS II which was scheduled to be announced in past April, has been delayed.