Disappearing masons & mega-church malls

In Martin Marty's weekly email newsletter, Sightings, he discussed the waning presence of the Masons on American culture, as their membership has fallen from 4 million in 1959 to about 1.5 million today. Near the end of his piece Marty threw in the following observation:

"Now an abrupt end-note on the Zeitgeist: Recalling Dean Inge's old warning about how one soon becomes widowed if wed to the spirit of the times, it is time to ask about the future of currently prospering and often boasting leaders of religious movements that are overly tied to the new scene of pop culture, partisan political identification, and market-based choice of religious themes and strategies. Next time you pass a vacated Masonic building, think of the folly of swaggering today and ask: Who and what are next?"

I wonder what that could look like when plugging in terms such as:
- mega-churches - could these buildings eventually wind up empty and transformed into shopping malls? Are the already halfway there (the mall part)?
- emerging churches - by emphasizing community overphysical building, will some merely evaporate into the ether? There's one kind of church that's attempting the emerging thing in nashville that we've visited. the building they've met in is now shut down and despite being on their email list i've received nothing in at least 8 months.

There are plenty more to consider. I just appreciate the thought that one wed to the spirit of the times is soon widowed.