That is in America at least where the COVID-19 pandemic is still keeping cinemas from opening.
Disney also announced that other countries where Disney+ was available would get the movie, but some countries that don't will get a theatrical release.
The UK has Disney+ and movie theatres are starting to open, and by September 4th, the announced release date, even more will be open.
The movie is most likely to get a duel release in the UK, and other countries in Europe as well as Australia and New Zealand so people can choose how to watch it, a worrying move for the cinema industry.
Other films that have been delayed are The New Mutants and Black Widow which are still set to have theatrical released but could also get Disney+ 'rental' releases as well as hit cinemas.
Lets hope (for many reasons) things get back to normal soon, then we can start enjoying more movies as they should be seen, in a movie theatre!