Produce a new Canon EF 400mm f/5.6L IS USM lens

We want a new Canon EF 400mm f/5.6L IS USM lens

-Image Stabilizer

-Better Optical Design, at least as sharp as 300mm 2.8 IS. Flourite?

-Should work well with Extender

-Highest AF speed with improved Ring USM (Ultrasonic Motor) and new algorithms for focus prediction with moving subjects.

-weather sealing

-Closer Focusing Distance.

-Focus limiter:2m-∞, 6m-∞, 8.5m-∞, 2m-8.5m?

-Black version?

-Diaphragm Blades: 9

-Protective, removable front glass element

-Same detachable tripod mount

-Improved built-in hood

-Similar size and weight

-Soft bag, should fit lens and attached camera