Nikon will slowly down-size until they find the proper resource balance for their marketing strategy (FX DSLR is King). Nikon makes well-engineered products. The extant F-mount lenses alone will make FX DSLRs attractive to many.
It will survive but it I believe it will be a very different company in terms of size and product diversity.
“Basically, I mean, ah—well, let’s say that for me anyway when a photograph is interesting, it’s interesting because of the kind of photographic problem it states—which has to do with the . . . contest between content and form.