Even then.. the only lenses Nikon has nothing really equivalent to are the 50 f/1.2 and the 85mm f/1.2..
Even the 85mm f/1.2 you could say is comparable to the Nikon 85mm f/1.4... I've seen side by sides..and they're both really cracking lenses...
The 135L is stated a lot..but for portraits..the 135mm f/2 DC is no slouch, its supposed to be a Bokeh master...its only big issue is that the AF isnt lightning quick like the 135L and people misunderstand it
Nikon really needs an equal (IQ and price) to the 100-400L though. It's about the only real weakness in their zoom line-up. A 70-200 f/4L IS equivalent would also be nice, but after being pleasantly surprised by the IQ from the 70-300VR it's not a big "want" anymore.