The release schedule for the upcoming GNOME 43 desktop environment series was published at the end of March 2022, shortly after the release of the GNOME 42 desktop environment, suggesting that the final release date is slated for September 21st, 2022.
GNOME 43 will be the third major update in the GNOME 4x series, and development slowly kicked off this month but an alpha version will be readied for public testing in early July, while the beta version is expected a month later in early August.