For New York City and its trillion-dollar economy, September was supposed to mark a return to normal, a moment when Broadway theaters reopened, stores and restaurants hummed, and tourists and office workers again filled the streets.But that long-awaited milestone has been upended by the Delta variant of the coronavirus. One big company after another has postponed plans to come back to Manhattan’s soaring towers. Trade shows have been canceled. Some small businesses have had orders evaporate.It is a setback for a city that has lagged behind the rest of the country in its economic recovery, with a 10.5 …
