I'd love to have more/better/faster primes. I really would. But it's hard for me to see Nikon's recent development of sharp, fast, mid-speed lenses as anything but really good news.
The 35/1.8 is an amazing DX lens. VERY sharp, far better wide open than either of the older AF 50s (I've never shot the AFS, but I doubt it's appreciably better), better bokeh than them, light, and fast handling. I pair mine with my 85/1.4 all the time -- and the little $200 wonder gives up NOTHING to the "pro" lens.
The new 85 weights TWELVE OUNCES. That's not just good for a (rudely stereotyped) "novice", but for demanding amateurs and pros alike who need high quality images but who chafe at Nikon's move toward heavy zooms as the only way to get premium image quality. This is in many ways a return to something Nikon used to do really well -- slightly slower high quality lenses that suited both amateurs and mobile pros who cared more about image quality and getting the shot than looking like a "professional" because they carry a backbreaking zoom on a heavily padded strap.
In the AI/AIS days, a 35/2 wasn't inferior to a 35/1.4 in anything but speed -- the image quality was at least as good optically at comparable stops (and often better). Same for many other MF prime slow/fast pairs. With the move to digital, the gap between "professional" and "consumer" lenses has widened, which is a huge frustration. The 16-85 is an exception, and I see it as part of this newer trend, which is toward lighter slower lenses that are nonetheless optically excellent. It's a vastly more useful lens for demanding uses than something like the 18-200.
If the 85/3.5 is genuinely good -- by that I mean truly excellent wide open, with better bokeh than the 85/1.8 (which is worse at f/3.5 than it is at f/1.8) -- I'll probably try one. It might keep DX viable for me for longer.
A D90 plus 35/1.8, 85/3.5, and a wide zoom (12-24, etc.) is a LOT of "professional" image-making ability in a very compact package.