Not only does this mean another batch of episodes telling the stories of Andy Herrera and Co. at Station 19, but presumably more crossovers between Station 19 and Grey’s Anatomy.
The Grey’s Anatomy spinoff only debuted in the 2019-2020 season in late January with an epic crossover event, but ABC has evidently seen enough to order a renewal for Season 4.
Station 19 is going to be sticking around for at least one more season!