Hopefully
@Bill Godshall will chime in with his extensive wisdom. My
guess with a little humor is that the Deming must obtain the blessings of OMB before a final rule. OMB looked at the deeming and said, not so fast Commander Zeller. We need more paper work and public input which embraces vaping if you hope to place vaping under the TCA etc. Note the heading on the linked document which reads (OMB Control Number 0910-0731)—
Extension
So..no Final rule (if/when) till compliance with OMB and comment period expiration (11/16/15) and then more time to waste our money with FDA internal procedures. This pushes the publication (if/when) of the final rule in the Federal Registry into the first quarter of 2016 which makes my last predication wrong. /lol
All I can say is that vendors/manufact/etc must spend a hell of a lot of money before they meet with the FDA which is the focus of the linked document.
Just my best guesses and subject to the wisdom of "Uncle Bill"
Edited for clarity