Gordon Cox Theater EditorThe new musical “American Prophet” is now in the midst of its world premiere run at Arena Stage in Washington, D.C. Next stop: Broadway?Listen to this week’s “Stagecraft” podcast below:That’s the goal, according to the show’s star, Cornelius Smith Jr., speaking on the new episode of “Stagecraft,” Variety’s theater podcast. “I hope the next stage is that we get to Broadway and we get to New York,” he said.