This is rather sad as a price of $11k makes this lens way overpriced.
Nikon 300/2.8 VR - $5,800
Canon 300/2.8 II - $7,300 (25.8% premium)
Nikon 200-400 - $7,000
If you apply the same premium to a Canon 200-400, you arrive at a price of $8,800. Of course, the Canon 200-400 has the built in 1.4x extender, but if this lens is priced at $11k that means you are effectively paying $2,200 for the extender - compared to the III versions that cost $500.
Given current trends $9,500 would be an appropriate price for this lens. At $11k the lens begins to compete with the 400/2.8 II - which does not have the flexibility of a zoom but does offer better bokeh, faster AF, and the ability to become an 800/5.6. For my uses, that would put the 400/2.8 II as the better buy.