Currently, there have been no suggestions by the cast or crew that a Don’t Worry Darling sequel is happening. At the end of the original film, many characters are dead or gone, suggesting that, should there be a sequel, it would likely feature different actors in a new scenario. Especially following rumors of on-set tensions between the leading lady and the director, a Don’t Worry Darling follow-up would likely require some heavy negotiations.

Source: https://www.distractify.com/p/dont-worry-darling-sequel