They will have to rescue themselves in the current imaging market. Hopefully by reinventing themselves, as the future of DSLRs, which is what they are primarily making these days, is soon to be the next ex thing. Nikon has a great brand name and strong (but fading) customer loyalty, but they need to totally rethink where the market will be 5 years from now to have any success, or they will squander the name's worth. In the meantime they can sell their name to makers of high end sun glasses, optic manufacturers, etc and make hay while the sun is still shining on their company.
Personally, I think digital imaging is long in the tooth. The sensors are as good as they will ever get. More resolution or sharpness is not going to help anything, and everyone understands the medium's inherent difficulty in matching B&W's film performance in terms of IQ, just as digitally shot movies are apples and oranges compared to movies that are shot on film. No one shoots film because it's cheaper.... it is hugely more expensive to shoot, but has a look that cannot be duplicated digitally. I just watched a good print of 2001: A Space Odyssey last night that had been shot on 70mm film (not the inferior 35mm print) and wow! That is leap years better than any movie ever made from a digital source. So Nikon has to take chances, and look at what is "better" than digital, and what is the up and coming technologically that is going to supersede it. One thing you can take to the bank....something is going to, and those that are now working on what it will be will become the leaders of tomorrow.
Will the next "big thing" in consumer imaging be 3-D? Holograms for the masses? Virtual reality? Nikon needs to figure this out because the only other alternative is to turn themselves into a niche company and build film cameras again. That looks like a dead end. Hopefully they will look closely at what happened w/ Kodak and not repeat their mistakes. Unfortunately, big corporations, especially conservative corporations like Nikon, think and act very slowly. Liken them to a super tanker that takes miles and miles to stop. The captain needs to know well beforehand what he is going to do, or it will be late.