The creators of Pretty Little Liars: Summer School have discussed the possibility of more original characters returning. After the end of the long-running teen mystery drama Pretty Little Liars in 2017, the franchise continued with the short-lived 2019 spinoff The Perfectionists. In 2022, the show was relaunched once again with Pretty Little Liars: Original Sin, a slasher-forward show that was renewed for a second season with a new subtitle, Summer School. Whether it’s Pretty Little Liars: Summer School season 2 or simply a third season with a new subtitle, another season seems entirely within the realm of possibility.

https://screenrant.com/pretty-little-liars-spinoff-original-cast-return-creators-response/