https://wccftech.com/blizzard-details-upcoming-world-of-warcraft-battle-for-azeroth-patch-8-2-5-party-sync-feature/

Blizzard has provided additional details about the upcoming party sync feature in World of Warcraft Battle for Azeroth Patch 8.2.5.

Back in June of this year, we already mentioned the new party sync feature that would become available on World of Warcraft’s Public Test Realm and Blizzard has now posted a preview about the feature. Party Sync allows players to temporally sync levels in order to allow higher-level players to quest and experience outdoor content with lower-level friends as they level up.