AFAIK the Society Company Limited still exists and has funds but no functional membership to keep the funds in the black and the basic admin chores done.
I have a UK interest but go to the USA to do things that are lawful there but not here.
There is no reason why the Society shouldn't attract members BUT there needs to be a good number of people who want to be in a revival for the long term knowing that the UK system is not friendly and actually doing manufacture is best done in an overseas place where their laws permit.
IF there are at least twenty people interested in running the society, fulfilling the official roles as Chair, Secretary etc, and willing to do live pyro in the USA then the society has a future.
One of the tasks the Society once had was to research the hundreds of historic old fireworks companies that once supplied the UK retail market. There was information posted to the forum once which will vanish if the forum goes. Restarting this project and finding a public library willing to hold the product (book!) would be a very interesting project.