It's already adapted into UK law, hopefully after Brexit the Gov may change some of the stupid rules. But i guess they won't as some of the TPD rules seem geared at preventing people vaping or switching. The Gov the EU all want that money off tobacco tax and will do anything to keep it coming in. They try to make out they are concerned for peoples health but the truth is they want money and what better way to go about it than tax fags and put up the tax every year while rubbing their hands together waiting for you to die from cancer or other smoking related diseases which lightens the amount of money they pay out if you don't make it to pension age.
Some rules that are in The TPD have failed to achieve what they where put in place for and others have work arounds. My guess is they will eventually start taxing vaping especially eliquids like they do with tobbaco knowing once 10ml hits a certain price people will just return to smoking, illness and death. in truth it's Murder. Vaping should never have had rules as they clearly are not working or justifiable