The short answers are (IMO); I seriously doubt it and agreed.
The younger generations live in a different world and have different interests. The majority of the younger generations couldn't care less what happened in the past. To be honest, when I was younger I was hardly any better.... only as I grew older I began taking an interest in the events of the past.
But, I think, there will always be some people who do take an interest.
The younger generations lack the ability to concentrate on the same issue for more than 5 minutes, are self-obsessed, always fumbling with phones, are fixated on instant gratification and adhere to individualism in stead of a sense for community.
So no, I don't see the young step into the shoes of the Weisberg-Lane Meagher generation. It is a sad state of affairs but it is what it is.
I watched a few of these conferences on YouTube. The speakers were interesting. Dr. Gary Aguilar, G. Robert Blakey, Eddie Lopez and Dan Hardway, etc. What surprised me were the attendees, they looked scruffy, unkempt, dressed in jeans and T-shirts and appeared to have spent the night in a ditch. However in the Q & A sessions they asked very sharp questions and from memory could recite entire documents. Not one of them was messing with a phone or making selfies with prof Blakey. Most of them appeared to be 50-ish so we're good to go for the next 20 years.
A friend of mine went to one of these meetings. First trip to the United States, as the conference was held in Dallas. Told me that Dealey Plaza is in fact quite small, and that it had changed compared to the Zapruder film. One thing he learned was: do NOT call a Negro teenager a boy, even if you are thrice his age. Ordering even a 'small' coffee at breakfast will get you enough to make it to lunchtime, same goes for steaks or salads. Everything is BIG. Including the people, obesity seems to rampage. I wish I would be able to attend one of these conferences, but I have a fear of flying so it regrettably will likely never happen.