Good to see that Nikon tries to give a perspective for the future, despite the crisis in the photography market that hit them even harder than Canon. I am pretty sure that at least some of their planned lenses will force Canon to make a move, too. They did in the past, e.g. with the Nikkor 200-400mm f/4 line of lenses, the original ED version came out in 1983. In 2013 Canon replied with their EF 200-400mm f/4, so Canon sports and wildlife photographers had to wait only for 30 years. So there is sometimes much room for optimism and enough time for long-term saving 
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