I have listened to this talk by Brian Mclaren about 10 times in the past month or so. In it, he outlines some of the challenges that have faced the Church in the recent past, as well as the hope and path for the Church in the future. He addresses the relationship of the independent evangelical churches to the mainline churches. Through the strengthening of these ties, he speaks of hope for a post-christian world.
"The Protestant history has been the history of downward expansion... The interesting thing that tends to happen is that each level of the Church denies the legitimacy of the levels above it... or below it. But what I would like to suggest [is that] a Deep Ecclesiology is [an] acknowledging [of] the Church and honoring the Church in all of its forms. And instead of arguing about which narrow band is legitimate; just assume that God has lower standards than we do and is willing to bless people that we would never bless... if we were God." ~ Brian Mclaren