Sheryl Lee Ralph was "not ready" for Jeanine and Gregory to start doing "grown-up things" on "Abbott Elementary"

Abbott Elementary' actress Sheryl Lee Ralph teases the upcoming ‘Abbott Elementary' and ‘It's Always Sunny' crossover episode.

Students in Philadelphia may have already returned to class, but the fan-favorite fictional Philly teachers and staff of the hit TV show “Abbott Elementary” return to the small screen Wednesday

Our first look at the upcoming It’s Always Sunny in Philadelphia and Abbott Elementary is here, courtesy of Rob McElhenney in a new photo. McElhenney took to social media to share a new photo of both casts posing inside of the titular Abbott Elementary.

Although an official release date for the Abbott Elementary and It’s Always Sunny crossover episode hasn’t been confirmed, it could be coming soon.