ReclaimingTheMission.com thinks that the clock may be ticking on the mega church.  The rational?  Post modernity will be its undoing.

The postmodern is convinced of truth through participation, not
consumer appeals, through wholly lived display, not reasoned arguments.
Seeker services will still work for the boomers and those raised in
modernity either by age or in the Evangelical subculture. These people
of modernity were taught to trust only their individual minds or
experiences. Postmoderns however know their minds or experiences can be
manipulated. Modernist boomers are suspicious of tradition in the true
Enlightenment sense. They are the ultimate feeling generation, self
indulgent and focused on their own "felt needs." Post modernity
however, finds a generation that suspects the blatant consumer oriented
persuasion of the dominant media. Their "felt needs" have an ever
shorter MTV-like life span. Some of this Next generation sees marketing
and advertising as capitalist intrusions with an agenda into forming
people certain ways so as to benefit certain economic power interests.
They respect truth that is lived. The postmodern generation may enjoy
the show for a short while. But they are looking for a home; a
community wherein a belonging can take root and the moral fabric of
truth can be borne out. If postmodern culture is for real, seeker
services are running out of time.  (Source)

I think as it relates to seeker services, that may be true.  However, my two cents is that the mega church is here to stay.  A mega church does not have to have seeker services, does it? 

I think the people will gravitate towards the large, "mega" church or the small family or house church.  People will want the intimacy the small church creates (or at least can create) or the diversity of programing the large church offers. 

The church who’s clock may be ticking, in my humble opinion, is the mid-sized church that can not offer the options of a mega church nor the intimacy of a smaller one.

Your thoughts?