Greg Forster—author of the excellent book Joy for the World: How Christianity Lost Its Cultural Influence and Can Begin Rebuilding It (foreword by Tim Keller)—offers his predictions about evangelicalism over the next five years:

  1. Evangelicals will lose little ground as a percentage of the American population.
  2. Evangelicals will hold steady on core beliefs, but will often sound like we aren’t.
  3. Evangelical cultural influence will decline in the short term as we are persecuted and excluded.
  4. A new Religious Right and a Benedict Option movement will both rise and flame out quickly.
  5. Evangelicals will cultivate local, holistic responses to economic and sexual destruction.
  6. Evangelicals will embrace a “hopeful realism” about America, and end up in a position of strength.

You can read his explanation of each point here.