Consider this comment made in response to an article on the question:  Do Congregations Matter?     

Congregations DO matter, but congregations that survive the next few decades will look very different. They will be less defined by geography or proximity and more defined by mission. They may no longer be membership-based!   Imagine a faith where you can “belong” to three or more churches—one because you like the music, one because you resonate with mission, another because of heritage, and another for charitable reasons. Some might be local. Some might be on the other side of the world.  People do this all the time in their secular lives, giving to local charities, international charities and actually working for others. Actually, they do this today within the Church when they send offerings to online ministries.   (Judith Gotwald in response to article by David Odom)[1]

 See this link for full article:  http://www.faithandleadership.com/blog/07-21-2014/why-do-congregations-matter

What do you think?   What will congregations look like in the next ten to twenty years?

[1]   Call and Response Blog, http://www.faithandleadership.com/blog/07-21-2014/why-do-congregations-matter