Wildlife Photography Lenses

Dear Nikon,

I would really like to see two lens' from you Nikon. I am becoming very interested in wildlife photography but I am just an amateur would like to see some affordable wildlife long lens'
The Nikkor 70-200mm F2.8 VR is not exactly affordable..
And the 300mm F2.8 VR is most certainly not.

This is why I would really like to see a Nikkor 70-200mm F4 VR made.
And a 300mm F4 VR.

I know they would still not what you call cheap but I would expect them to be more affordable than the F2.8 versions.