What I'm wondering about now is the DIY flavoring industry.
Further down the proposal FDA states:
"Section 201(rr) of the FD&C Act (21 U.S.C. 321(rr)), as amended by the Tobacco Control Act, defines the term "tobacco product" to mean "any product made or derived from tobacco that is intended for human consumption, including any component, part, or accessory of a tobacco product (
except for raw materials other than tobacco used in manufacturing a component, part, or accessory of a tobacco product).""
If that wording doesn't change, than PG/VG and flavorings won't be encompassed in the regulations, only the finished product.
Liquid nicotine might be regulated, as the nicotine used in vaping is derived from tobacco, and is thus a 'tobacco product' under the amended FD&C Act.
A possible way around that in the future might be the 'synthetic' or 'lab-created' nicotine that is used as an industrial pesticide, though that nicotine is supposedly concentrated and is largely unexplored for the purposes of vaping as it has only been produced in an industrial grade, and is thus unsuitable for human consumption. If tobacco-extracted nicotine rises high enough in price, it may stir more research into 'synthetic' nicotine, resulting in a pharmaceutical grade product.
Another possible avenue is nicotine that is extracted from another plant source, such as eggplants. Both of these options are more expensive to produce, and would only be viable if the cost of mass produced liquids and conventional nicotine were both in enormous excess from over-taxation, leaving no other alternative.
Time will tell, I suppose.