Following on the heels of new level scaling tech introduced in Legion, World of Warcraft: Battle for Azeroth will bring zone scaling to the old world, Outland, Pandaria, and Cataclysm zones.
Everything mentioned here as it applies to older content will go live with patch 7.3.5 (during Legion, and the same patch for the unveiling of the Antorus raid).
To make leveling from older zones more relevant, and to keep pace with the story of zone questing, older zones will be retrofitted with the new zone scaling tech for leveling.
Groups of zones will be bunched into groups of availability. For instance, Westfall will scale for players 10 to 60, while Burning Steps will scale from level 40 to 60. This is to make sure players don’t feel odd playing at max level trying to beat early level threats.
All dungeons and their rewards will also scale appropriately in scaling groups–presumably, early vanilla dungeons will scale from their containing zone’s earliest level to it’s latest level, which seems to be 60 for most (if not all) vanilla zones.
This philosophy will give players a greater amount of relevant content to choose from while leveling, make sure they can complete zone quest chains in a manner suitable to their level, and make it easier for friends who might outpace each other to continue playing together.
That wraps up the BlizzCon overview of old world level scaling for Battle for Azeroth, the latest World of Warcraft expansion. Stay tuned for many more articles!