Well as it stands now the ban is on vape equipment not approved by the FDA beginning in Jan 2020. Isn't that everything? So overturning it would be a good start as vape equipment could still be sold as the FDA isn't enforcing anything yet.
The flavor ban was a separate ordinance and is already in effect. The ban only applies to flavors other than tobacco and only applies to juice containing nicotine. To get around this, vape stores/cig stores sell major brands of flavored juice in 0 MG nicotine and sell separate shots of nicotine to put in the juice yourself. They mainly sell these nicotine shots from Sapphire.
Concentrated Nicotine Solution Packets | Liquid Nicotine
A vape store owner I know says that currently the City is talking about allowing 5 Vape stores in the city to continue selling vape equipment. Not sure how this would work or why the city would do it. It will create a lot of lawsuits from stores without permit to sell