The "fundamentals" won't necessarily change. People still need to meet with people who share their concerns and interests. They need to network for employment (especially if their industries and professions disappear due to the rise of artificial intelligence - you should read "The Future of the Professions" by Richard Susskind and Daniel Susskind as well as "The Future of Business: Critical Insights into a Rapidly Changing World" edited by Rohit Talwar and read them NOW!!!). They need education and tools to make them better at their jobs or that will give them the skills they need to lateral up or out to get jobs that still exist. We will still need to represent our industries and professions to legislative and regulatory bodies.
That being said - I think associations will have to radically change their aversion to new technology. They will have to let go of a lot of the hierarchy and control and move to more holocratic systems. I think associations should begin to really up their ethics game in terms of whether the activities they pursue are for the betterment of people and the planet. Associations will have to collaborate in their industry or sector verticals, but also across horizontals as they begin to realize they are all part of one, large eco-system and if humanity is going to make it we have to develop new ways of judging the impacts we have on others and share limited resources. I hope we decide, once and for all, that legislation is not a zero sum game and that compromise for the health of a civil society is necessary. Last but not least, I hope associations in 2030 up their game in terms of elevating their consciousness. My hope is, over the next few years, that we begin to apply spiral dynamics in a disciplined way so we can act integrally, with more kindness and more awareness of the impact we have on others.