After several months worth of consistently exciting battles, heart-wrenching plot twists, and controversial reports of overworked staff, Jujutsu Kaisen’s highly anticipated and acclaimed second season has reached its conclusion. The season’s first Gojo’s Past Arc laid the groundwork and introduced several story beats necessary for the second Shibuya Incident arc to succeed as well as it did, but the anime is already looking to the future. The final episode of Season 2 hints heavily at a complete overhaul of the current jujutsu society in the following arcs to come.
Source：https://www.cbr.com/jjk-season-2-ending-explained/
