I asked myself this in 1995 with the generation change. I do not think there will be any pre-1975 witnesses in a few years. I was on yahoo answers and the witnesses feel good about adjustments. Some say it means the end is closer.
Two elders came and visited me a few month ago. WOW, I was in the organization longer than the both of them. They agreed, there had been more changes in the last few years than any time before. These adjustments show how close we are.....................
I feel all religions are the same. Different paths that attempt to take u closer to god. Imperfect, notheless. Draw close to god and pray constantly. Do not be discouraged, god never changes, men do.