Traditional archery is growing, but not because of non-hunters seeing a movie. Nor major growth going to come from children of existing trad shooters.
Any major "growth" of traditional archery, post 1970's, always was and always will come from the very large ranks of existing compound hunters who've grown bored with the compound.
I'm one of those folks myself. And, within the last couple years, 3 of my buddies who've shot compounds for 20 plus years also are in the transition of switching over full time.
That's why it's important not to turn up noses or make statements like "training wheels" about compound shooters, many of which are top notch hunters. Many of the strongest future advocates for traditional archery are still shooting compounds but haven't switched yet.
Also notice the increase in magazines now covering "stickbows".
Contrary to what some believe, the hunting industry follows the trends of hunters desires, not the other way around. If hunters did or didn't want stickbow sections, they'd let the editors know it.
My guess is, with the aging demographics of current bow hunters (mostly compound), we're see even more bowhunters make the switch as compounds become further removed from being bows and as hunters mature as hunters and as people.
We'll see more of those who are able, turning to lower weight trad bows and we'll see many older compound shooters who are unable switch to x-bows.
Either way, I predict a very noiceable increase in traditional archery from here on out. Traditional archery isn't "primative" unless you want it to be. With composite takedowns, carbon arrows, etc, current compound shooters can see that the performance of trad archery is pretty impressive.
The "in the wilderness years" from the invention of the compound to the early 2000's is over. I also think the internet has a lot to do with the potential growth of trad archery. Without the internet, I doubt I'd have switched. I didn't know where to start or even that a great trad shop was only 15 minutes from my home.
Despite the simplicity of trad archery, most compound shooters are intimidated by trad archery. I didn't even know how to string a bow, let alone how to adjust brace height. And bareshafting was like reading Chinese. Sure, it's all so easy now, but as an accomplished compound shooter starting in 1978, I had no idea and was frankly intimidated by the whole idea of switching over. For that reason, the internet and more magazine coverage only helps get more into the sport.