NEW YORK — Fans of Broadway will have to wait a little longer for shows to resume — until at least late May.

Although an exact date for various performances to resume has yet to be determined, Broadway producers are now offering refunds and exchanges for tickets purchased for shows through May 30.

Broadway theaters abruptly closed on March 12, knocking out all shows — including 16 that were still scheduled to open — and scrambling the Tony Award schedule. Producers, citing health and city authorities, previously extended the shutdown to June 7, then again to Sept. 6 and again to Jan. 3.

The new timeframe may complicate a clutch of show that had planned to open in the spring.