An immediate member of my family works at a major producing organization on Broadway (producing some of the biggest shows currently running) - and the internal consensus as of yesterday is mid-August. Just a few days ago, they were aiming for Mid-July to early August. So, things can change but one of the greatest obstacles they're facing is rethinking theater seating. With social distancing here at the epicenter (that will continue according to them, at least for a while after business resumes), cautiously sparser attendance mixed with limited, spaced out seating will greatly affect overhead/ticket prices. If you think it's expensive now...
Also, most new and smaller shows won't make it until then. The old warhorses are most likely safe, Lloyd Webber said Phantom's good to go! The Tony Awards have also been pushed back from June 7th to an as-yet-unannounced date. First time in history. And since many new shows still haven't opened, the awards may be cancelled altogether. There are a lot of "mays" in this but consider that shows can't be streamed at home like films are. If the Oscars are affected this year, they at least have avenues of distribution.