So will the next generation (overlapping generation sorry) of witnesses and non-witnesses even know about the society's previous names?
I don't know how old you are Stuckinarut2 but I'm sure (like me) you were unaware of what the JW's before you were told and what effect it had on their life. I have found that the younger JW's of today, don't really care what happened before they came onto the current JW scene. They are able to dismiss the experiences of those who came before them quite easily, without seeing the pattern that we (of a certain age) are able to recognize.
When current JW's hear about "Miracale Wheat, Beth Sarim and UN membership" they view them as amusing anecdotes from the past and even chuckle at the notion that JW's once believed (for example) that Immunization against disease, was at one time considered to be against God's will.
So on it goes....the more things change....the more things stay the same.