Another place to look for connections is recent ball parks and movie theaters such as Turner Field in Atlanta. Keep in mind that regionalism still survives and affects walk in traffic. The architecture tells you a lot about the churches style. The inside look can be modern and the outside look still be traditional. One of the biggest trends today is growing in one place while planning on moving to another when outgrowing the present space and then selling it to another church that is planning on doing the same thing.
Flexibility is now paramount.
There is the need for teaming as well as private, conference, train, and collaborative in the same space. Architecture should make a statement about sound, sight, and feel. It should call one to an experience. It should say theater. Chancels are wide open with little bolted down, lobbies are much larger, more parking.