I also find the roadmap not that interesting... But i do not know the outcome.
For instance a 70-200 f2.8; will it be smaller and lighter than the ones we have, can Nikon put fase-fresnel optics in more lenses than tele?
I would like to see f2.8 fixed focal lenses with qualities: small, light and stellar.
They can be made for a reaonable price considering f2.8 means 1/4 of the surface of f1.4.
Af could be very fast for the same reason.
a 14mm , a 18mm, a 24mm, a 35mm, a 50mm , a 85mm come to mind.
+ a new macro 85-105mm f4.