|This site contains affiliate links to products and services. We may receive a commission for purchases made through these links.|
The source that spoke of the 5 new lenses from Canon claims the 100-400 is indeed getting an upgrade. It'll be slightly faster and possess a 5 stop IS. He wasn't sure whether or not it would be a push/pull design or not.
Canon EF 100-400 f/4-5.6L IS = $1899 USD