So here me out.
Once you have completed the main story on a new expansion on your first character (or get to level cap), a NPC (or Chromie) in the main cities (SW / Org) allows the player to scale old world content (anything older then the current expansion) to current expansion level range.
For example:
- Level Character_A through 11.0 to level cap / complete 11.0 main story
- Level 70 Character_B alt talks to NPC in SW / Org to make Old World scale
- Level Character_B to 11.0 level cap through BFA content
- Level Character_C to 11.0 level cap through Cata content
- and so on…
Essentially an extension of Chromie time, making it a togglable semi permanent buff.
It would also make end game more interesting if level capped characters could scale old world when going for Loremaster. (insta killing mods is nice and all, but sometimes it would be nice to have a bit of a challenge in old world)
Anyways.
Cheers.