Well you still haven't really answered the question.
I say 1 to 4 years before final rule is in place, and you seem to think it will be less than that. I'd love to hear your date and reasoning and then possibly bet large sums of money on what you come up with.
More so, when it comes to actually impacting the market in significant way. I predict that thru 2020, vapers will be able to get eliquid that is not made by BT or BV. Currently have a wager on that, and feeling very confident, I'll be collecting.
If I have to Pick a Square in the Office Pool, then I'll take Less than 1 Year from Todays Date that the FDA will have Legal Authority to Restrict/Regulate e-liquids that contain Nicotine derived from Tobacco Plants. And you will be seeing the 1st Phase of their Restrictions / Regulation being Implemented.
As to No "Significant" Impact on Vaper's until 2020. OK.
I wish I could Fool Myself into that Level of Optimism. But I can't. And You are Going to Lose that Bet on Multiple Levels.

