If the FDA deeming goes into effect, and the current multitudes of vape shops disappear ...that "Future Vaper" will probably do what many current smokers who try a convenience store cig-alike, do.
Most Future Vapers will likely say "yuck" to the cig-alike. Yuck to the taste, or the short battery life, or the expense of something that doesn't come anywhere near lasting as long as a "pack of cigarettes." They'll just stick with smoking.
Without vape shops providing an endless choice of flavors, devices, sampling, troubleshooting, advice, and support... most potential "Future Vapers" won't stand a snowball's chance.
They'll just be "Continued Smokers."